Home / 39,660.20-59,425.98-20,939.24

Finding the Fourth Proportional to 39,660.20, 59,425.98 and 20,939.24

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Solution

The fourth proportional to 39,660.20, 59,425.98 and 20,939.24 is: 31,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,660.20 : 59,425.98 = 20,939.24 : x
  2. Step 2: Convert to fraction form
    39,660.20/59,425.98 = 20,939.24/x
  3. Step 3: Cross multiply
    39,660.20x = 59,425.98 × 20,939.24
  4. Step 4: Simplify right side
    39,660.20x = 1,244,334,857.46
  5. Step 5: Solve for x
    x = 1,244,334,857.46/39,660.20
  6. Step 6: Final answer
    x = 31,374.90

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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.