Home / 28,292.91-42,438.60-9,572.82

Finding the Fourth Proportional to 28,292.91, 42,438.60 and 9,572.82

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Solution

The fourth proportional to 28,292.91, 42,438.60 and 9,572.82 is: 14,358.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.91 : 42,438.60 = 9,572.82 : x
  2. Step 2: Convert to fraction form
    28,292.91/42,438.60 = 9,572.82/x
  3. Step 3: Cross multiply
    28,292.91x = 42,438.60 × 9,572.82
  4. Step 4: Simplify right side
    28,292.91x = 406,257,078.85
  5. Step 5: Solve for x
    x = 406,257,078.85/28,292.91
  6. Step 6: Final answer
    x = 14,358.97

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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.