Home / 21,709.38-29,952.33-12,148.27

Finding the Fourth Proportional to 21,709.38, 29,952.33 and 12,148.27

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Solution

The fourth proportional to 21,709.38, 29,952.33 and 12,148.27 is: 16,760.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709.38 : 29,952.33 = 12,148.27 : x
  2. Step 2: Convert to fraction form
    21,709.38/29,952.33 = 12,148.27/x
  3. Step 3: Cross multiply
    21,709.38x = 29,952.33 × 12,148.27
  4. Step 4: Simplify right side
    21,709.38x = 363,868,991.97
  5. Step 5: Solve for x
    x = 363,868,991.97/21,709.38
  6. Step 6: Final answer
    x = 16,760.91

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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.