Home / 38,915.78-58,397.28-15,540.26

Finding the Fourth Proportional to 38,915.78, 58,397.28 and 15,540.26

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Solution

The fourth proportional to 38,915.78, 58,397.28 and 15,540.26 is: 23,319.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,915.78 : 58,397.28 = 15,540.26 : x
  2. Step 2: Convert to fraction form
    38,915.78/58,397.28 = 15,540.26/x
  3. Step 3: Cross multiply
    38,915.78x = 58,397.28 × 15,540.26
  4. Step 4: Simplify right side
    38,915.78x = 907,508,914.49
  5. Step 5: Solve for x
    x = 907,508,914.49/38,915.78
  6. Step 6: Final answer
    x = 23,319.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.