Home / 25,380.53-38,057.64-13,531.11

Finding the Fourth Proportional to 25,380.53, 38,057.64 and 13,531.11

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Solution

The fourth proportional to 25,380.53, 38,057.64 and 13,531.11 is: 20,289.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,380.53 : 38,057.64 = 13,531.11 : x
  2. Step 2: Convert to fraction form
    25,380.53/38,057.64 = 13,531.11/x
  3. Step 3: Cross multiply
    25,380.53x = 38,057.64 × 13,531.11
  4. Step 4: Simplify right side
    25,380.53x = 514,962,113.18
  5. Step 5: Solve for x
    x = 514,962,113.18/25,380.53
  6. Step 6: Final answer
    x = 20,289.66

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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.