Home / 28,092.92-42,139.36-8,370.97

Finding the Fourth Proportional to 28,092.92, 42,139.36 and 8,370.97

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Solution

The fourth proportional to 28,092.92, 42,139.36 and 8,370.97 is: 12,556.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.92 : 42,139.36 = 8,370.97 : x
  2. Step 2: Convert to fraction form
    28,092.92/42,139.36 = 8,370.97/x
  3. Step 3: Cross multiply
    28,092.92x = 42,139.36 × 8,370.97
  4. Step 4: Simplify right side
    28,092.92x = 352,747,318.38
  5. Step 5: Solve for x
    x = 352,747,318.38/28,092.92
  6. Step 6: Final answer
    x = 12,556.45

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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.