Home / 21,534.38-29,717.15-12,102.96

Finding the Fourth Proportional to 21,534.38, 29,717.15 and 12,102.96

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Solution

The fourth proportional to 21,534.38, 29,717.15 and 12,102.96 is: 16,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,534.38 : 29,717.15 = 12,102.96 : x
  2. Step 2: Convert to fraction form
    21,534.38/29,717.15 = 12,102.96/x
  3. Step 3: Cross multiply
    21,534.38x = 29,717.15 × 12,102.96
  4. Step 4: Simplify right side
    21,534.38x = 359,665,417.25
  5. Step 5: Solve for x
    x = 359,665,417.25/21,534.38
  6. Step 6: Final answer
    x = 16,701.92

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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.