Home / 38,345.40-52,915.17-21,350.31

Finding the Fourth Proportional to 38,345.40, 52,915.17 and 21,350.31

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Solution

The fourth proportional to 38,345.40, 52,915.17 and 21,350.31 is: 29,462.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,345.40 : 52,915.17 = 21,350.31 : x
  2. Step 2: Convert to fraction form
    38,345.40/52,915.17 = 21,350.31/x
  3. Step 3: Cross multiply
    38,345.40x = 52,915.17 × 21,350.31
  4. Step 4: Simplify right side
    38,345.40x = 1,129,755,283.20
  5. Step 5: Solve for x
    x = 1,129,755,283.20/38,345.40
  6. Step 6: Final answer
    x = 29,462.60

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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.