Home / 20,060.70-30,102.57-15,665.82

Finding the Fourth Proportional to 20,060.70, 30,102.57 and 15,665.82

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Solution

The fourth proportional to 20,060.70, 30,102.57 and 15,665.82 is: 23,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.70 : 30,102.57 = 15,665.82 : x
  2. Step 2: Convert to fraction form
    20,060.70/30,102.57 = 15,665.82/x
  3. Step 3: Cross multiply
    20,060.70x = 30,102.57 × 15,665.82
  4. Step 4: Simplify right side
    20,060.70x = 471,581,443.16
  5. Step 5: Solve for x
    x = 471,581,443.16/20,060.70
  6. Step 6: Final answer
    x = 23,507.73

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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.