Home / 34,585.38-47,728.77-21,156.39

Finding the Fourth Proportional to 34,585.38, 47,728.77 and 21,156.39

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Solution

The fourth proportional to 34,585.38, 47,728.77 and 21,156.39 is: 29,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,585.38 : 47,728.77 = 21,156.39 : x
  2. Step 2: Convert to fraction form
    34,585.38/47,728.77 = 21,156.39/x
  3. Step 3: Cross multiply
    34,585.38x = 47,728.77 × 21,156.39
  4. Step 4: Simplify right side
    34,585.38x = 1,009,768,472.34
  5. Step 5: Solve for x
    x = 1,009,768,472.34/34,585.38
  6. Step 6: Final answer
    x = 29,196.40

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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.