Home / 21,229.47-29,267.37-16,937.15

Finding the Fourth Proportional to 21,229.47, 29,267.37 and 16,937.15

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Solution

The fourth proportional to 21,229.47, 29,267.37 and 16,937.15 is: 23,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,229.47 : 29,267.37 = 16,937.15 : x
  2. Step 2: Convert to fraction form
    21,229.47/29,267.37 = 16,937.15/x
  3. Step 3: Cross multiply
    21,229.47x = 29,267.37 × 16,937.15
  4. Step 4: Simplify right side
    21,229.47x = 495,705,689.46
  5. Step 5: Solve for x
    x = 495,705,689.46/21,229.47
  6. Step 6: Final answer
    x = 23,349.89

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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.