Home / 28,387.28-42,580.92-10,862.48

Finding the Fourth Proportional to 28,387.28, 42,580.92 and 10,862.48

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Solution

The fourth proportional to 28,387.28, 42,580.92 and 10,862.48 is: 16,293.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.28 : 42,580.92 = 10,862.48 : x
  2. Step 2: Convert to fraction form
    28,387.28/42,580.92 = 10,862.48/x
  3. Step 3: Cross multiply
    28,387.28x = 42,580.92 × 10,862.48
  4. Step 4: Simplify right side
    28,387.28x = 462,534,391.88
  5. Step 5: Solve for x
    x = 462,534,391.88/28,387.28
  6. Step 6: Final answer
    x = 16,293.72

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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.