Home / 25,159.50-34,720.11-13,981.50

Finding the Fourth Proportional to 25,159.50, 34,720.11 and 13,981.50

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Solution

The fourth proportional to 25,159.50, 34,720.11 and 13,981.50 is: 19,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,159.50 : 34,720.11 = 13,981.50 : x
  2. Step 2: Convert to fraction form
    25,159.50/34,720.11 = 13,981.50/x
  3. Step 3: Cross multiply
    25,159.50x = 34,720.11 × 13,981.50
  4. Step 4: Simplify right side
    25,159.50x = 485,439,217.97
  5. Step 5: Solve for x
    x = 485,439,217.97/25,159.50
  6. Step 6: Final answer
    x = 19,294.47

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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.