Home / 34,377.85-47,445.75-20,953.31

Finding the Fourth Proportional to 34,377.85, 47,445.75 and 20,953.31

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Solution

The fourth proportional to 34,377.85, 47,445.75 and 20,953.31 is: 28,918.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,377.85 : 47,445.75 = 20,953.31 : x
  2. Step 2: Convert to fraction form
    34,377.85/47,445.75 = 20,953.31/x
  3. Step 3: Cross multiply
    34,377.85x = 47,445.75 × 20,953.31
  4. Step 4: Simplify right side
    34,377.85x = 994,145,403.17
  5. Step 5: Solve for x
    x = 994,145,403.17/34,377.85
  6. Step 6: Final answer
    x = 28,918.20

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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.