Home / 21,098.26-29,105.68-15,049.84

Finding the Fourth Proportional to 21,098.26, 29,105.68 and 15,049.84

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Solution

The fourth proportional to 21,098.26, 29,105.68 and 15,049.84 is: 20,761.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,098.26 : 29,105.68 = 15,049.84 : x
  2. Step 2: Convert to fraction form
    21,098.26/29,105.68 = 15,049.84/x
  3. Step 3: Cross multiply
    21,098.26x = 29,105.68 × 15,049.84
  4. Step 4: Simplify right side
    21,098.26x = 438,035,681.56
  5. Step 5: Solve for x
    x = 438,035,681.56/21,098.26
  6. Step 6: Final answer
    x = 20,761.70

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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.