Home / 38,069.32-57,129.82-13,445.32

Finding the Fourth Proportional to 38,069.32, 57,129.82 and 13,445.32

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Solution

The fourth proportional to 38,069.32, 57,129.82 and 13,445.32 is: 20,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,069.32 : 57,129.82 = 13,445.32 : x
  2. Step 2: Convert to fraction form
    38,069.32/57,129.82 = 13,445.32/x
  3. Step 3: Cross multiply
    38,069.32x = 57,129.82 × 13,445.32
  4. Step 4: Simplify right side
    38,069.32x = 768,128,711.44
  5. Step 5: Solve for x
    x = 768,128,711.44/38,069.32
  6. Step 6: Final answer
    x = 20,177.11

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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.