Home / 19,738.80-29,631.42-15,581.70

Finding the Fourth Proportional to 19,738.80, 29,631.42 and 15,581.70

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Solution

The fourth proportional to 19,738.80, 29,631.42 and 15,581.70 is: 23,390.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.80 : 29,631.42 = 15,581.70 : x
  2. Step 2: Convert to fraction form
    19,738.80/29,631.42 = 15,581.70/x
  3. Step 3: Cross multiply
    19,738.80x = 29,631.42 × 15,581.70
  4. Step 4: Simplify right side
    19,738.80x = 461,707,897.01
  5. Step 5: Solve for x
    x = 461,707,897.01/19,738.80
  6. Step 6: Final answer
    x = 23,390.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.