Home / 23,663.28-32,654.13-15,720

Finding the Fourth Proportional to 23,663.28, 32,654.13 and 15,720

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Solution

The fourth proportional to 23,663.28, 32,654.13 and 15,720 is: 21,692.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,663.28 : 32,654.13 = 15,720 : x
  2. Step 2: Convert to fraction form
    23,663.28/32,654.13 = 15,720/x
  3. Step 3: Cross multiply
    23,663.28x = 32,654.13 × 15,720
  4. Step 4: Simplify right side
    23,663.28x = 513,322,923.60
  5. Step 5: Solve for x
    x = 513,322,923.60/23,663.28
  6. Step 6: Final answer
    x = 21,692.81

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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.