Home / 25,311.62-34,929.90-13,981.90

Finding the Fourth Proportional to 25,311.62, 34,929.90 and 13,981.90

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Solution

The fourth proportional to 25,311.62, 34,929.90 and 13,981.90 is: 19,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,311.62 : 34,929.90 = 13,981.90 : x
  2. Step 2: Convert to fraction form
    25,311.62/34,929.90 = 13,981.90/x
  3. Step 3: Cross multiply
    25,311.62x = 34,929.90 × 13,981.90
  4. Step 4: Simplify right side
    25,311.62x = 488,386,281.49
  5. Step 5: Solve for x
    x = 488,386,281.49/25,311.62
  6. Step 6: Final answer
    x = 19,294.94

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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.