Home / 21,188.85-29,251.49-14,929.17

Finding the Fourth Proportional to 21,188.85, 29,251.49 and 14,929.17

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Solution

The fourth proportional to 21,188.85, 29,251.49 and 14,929.17 is: 20,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,188.85 : 29,251.49 = 14,929.17 : x
  2. Step 2: Convert to fraction form
    21,188.85/29,251.49 = 14,929.17/x
  3. Step 3: Cross multiply
    21,188.85x = 29,251.49 × 14,929.17
  4. Step 4: Simplify right side
    21,188.85x = 436,700,466.96
  5. Step 5: Solve for x
    x = 436,700,466.96/21,188.85
  6. Step 6: Final answer
    x = 20,609.92

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1.5x scale

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.