Home / 34,742.76-47,945.85-21,306.24

Finding the Fourth Proportional to 34,742.76, 47,945.85 and 21,306.24

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Solution

The fourth proportional to 34,742.76, 47,945.85 and 21,306.24 is: 29,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,742.76 : 47,945.85 = 21,306.24 : x
  2. Step 2: Convert to fraction form
    34,742.76/47,945.85 = 21,306.24/x
  3. Step 3: Cross multiply
    34,742.76x = 47,945.85 × 21,306.24
  4. Step 4: Simplify right side
    34,742.76x = 1,021,545,787.10
  5. Step 5: Solve for x
    x = 1,021,545,787.10/34,742.76
  6. Step 6: Final answer
    x = 29,403.13

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Half scale
Find fourth proportional to 69,485.52, 95,891.70 and 42,612.48
Double scale
Find fourth proportional to 34,743.76, 47,947.23 and 21,307.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.