Home / 39,445.92-59,186.22-20,721.61

Finding the Fourth Proportional to 39,445.92, 59,186.22 and 20,721.61

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Solution

The fourth proportional to 39,445.92, 59,186.22 and 20,721.61 is: 31,091.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,445.92 : 59,186.22 = 20,721.61 : x
  2. Step 2: Convert to fraction form
    39,445.92/59,186.22 = 20,721.61/x
  3. Step 3: Cross multiply
    39,445.92x = 59,186.22 × 20,721.61
  4. Step 4: Simplify right side
    39,445.92x = 1,226,433,489.85
  5. Step 5: Solve for x
    x = 1,226,433,489.85/39,445.92
  6. Step 6: Final answer
    x = 31,091.52

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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.