Home / 29,351.12-40,503.92-15,921.86

Finding the Fourth Proportional to 29,351.12, 40,503.92 and 15,921.86

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Solution

The fourth proportional to 29,351.12, 40,503.92 and 15,921.86 is: 21,971.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,351.12 : 40,503.92 = 15,921.86 : x
  2. Step 2: Convert to fraction form
    29,351.12/40,503.92 = 15,921.86/x
  3. Step 3: Cross multiply
    29,351.12x = 40,503.92 × 15,921.86
  4. Step 4: Simplify right side
    29,351.12x = 644,897,743.69
  5. Step 5: Solve for x
    x = 644,897,743.69/29,351.12
  6. Step 6: Final answer
    x = 21,971.83

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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.