Home / 28,610.28-42,867.90-20,248.92

Finding the Fourth Proportional to 28,610.28, 42,867.90 and 20,248.92

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Solution

The fourth proportional to 28,610.28, 42,867.90 and 20,248.92 is: 30,339.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,610.28 : 42,867.90 = 20,248.92 : x
  2. Step 2: Convert to fraction form
    28,610.28/42,867.90 = 20,248.92/x
  3. Step 3: Cross multiply
    28,610.28x = 42,867.90 × 20,248.92
  4. Step 4: Simplify right side
    28,610.28x = 868,028,677.67
  5. Step 5: Solve for x
    x = 868,028,677.67/28,610.28
  6. Step 6: Final answer
    x = 30,339.75

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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.