Home / 39,520.28-59,287.72-12,509.42

Finding the Fourth Proportional to 39,520.28, 59,287.72 and 12,509.42

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Solution

The fourth proportional to 39,520.28, 59,287.72 and 12,509.42 is: 18,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,520.28 : 59,287.72 = 12,509.42 : x
  2. Step 2: Convert to fraction form
    39,520.28/59,287.72 = 12,509.42/x
  3. Step 3: Cross multiply
    39,520.28x = 59,287.72 × 12,509.42
  4. Step 4: Simplify right side
    39,520.28x = 741,654,990.32
  5. Step 5: Solve for x
    x = 741,654,990.32/39,520.28
  6. Step 6: Final answer
    x = 18,766.44

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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.