Home / 19,711.17-29,551.10-11,381.76

Finding the Fourth Proportional to 19,711.17, 29,551.10 and 11,381.76

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Solution

The fourth proportional to 19,711.17, 29,551.10 and 11,381.76 is: 17,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.17 : 29,551.10 = 11,381.76 : x
  2. Step 2: Convert to fraction form
    19,711.17/29,551.10 = 11,381.76/x
  3. Step 3: Cross multiply
    19,711.17x = 29,551.10 × 11,381.76
  4. Step 4: Simplify right side
    19,711.17x = 336,343,471.03
  5. Step 5: Solve for x
    x = 336,343,471.03/19,711.17
  6. Step 6: Final answer
    x = 17,063.60

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1.5x scale

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.