Home / 39,728.48-59,589.36-10,145.12

Finding the Fourth Proportional to 39,728.48, 59,589.36 and 10,145.12

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Solution

The fourth proportional to 39,728.48, 59,589.36 and 10,145.12 is: 15,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,728.48 : 59,589.36 = 10,145.12 : x
  2. Step 2: Convert to fraction form
    39,728.48/59,589.36 = 10,145.12/x
  3. Step 3: Cross multiply
    39,728.48x = 59,589.36 × 10,145.12
  4. Step 4: Simplify right side
    39,728.48x = 604,541,207.92
  5. Step 5: Solve for x
    x = 604,541,207.92/39,728.48
  6. Step 6: Final answer
    x = 15,216.82

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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.