Home / 21,229.64-29,296.27-12,154.70

Finding the Fourth Proportional to 21,229.64, 29,296.27 and 12,154.70

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Solution

The fourth proportional to 21,229.64, 29,296.27 and 12,154.70 is: 16,773.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.64 : 29,296.27 = 12,154.70 : x
  2. Step 2: Convert to fraction form
    21,229.64/29,296.27 = 12,154.70/x
  3. Step 3: Cross multiply
    21,229.64x = 29,296.27 × 12,154.70
  4. Step 4: Simplify right side
    21,229.64x = 356,087,476.60
  5. Step 5: Solve for x
    x = 356,087,476.60/21,229.64
  6. Step 6: Final answer
    x = 16,773.13

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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.