Home / 28,230.30-42,345.45-27,711.90

Finding the Fourth Proportional to 28,230.30, 42,345.45 and 27,711.90

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Solution

The fourth proportional to 28,230.30, 42,345.45 and 27,711.90 is: 41,567.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.30 : 42,345.45 = 27,711.90 : x
  2. Step 2: Convert to fraction form
    28,230.30/42,345.45 = 27,711.90/x
  3. Step 3: Cross multiply
    28,230.30x = 42,345.45 × 27,711.90
  4. Step 4: Simplify right side
    28,230.30x = 1,173,472,875.86
  5. Step 5: Solve for x
    x = 1,173,472,875.86/28,230.30
  6. Step 6: Final answer
    x = 41,567.85

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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.