Home / 39,840.80-59,761.20-11,761.24

Finding the Fourth Proportional to 39,840.80, 59,761.20 and 11,761.24

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Solution

The fourth proportional to 39,840.80, 59,761.20 and 11,761.24 is: 17,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,840.80 : 59,761.20 = 11,761.24 : x
  2. Step 2: Convert to fraction form
    39,840.80/59,761.20 = 11,761.24/x
  3. Step 3: Cross multiply
    39,840.80x = 59,761.20 × 11,761.24
  4. Step 4: Simplify right side
    39,840.80x = 702,865,815.89
  5. Step 5: Solve for x
    x = 702,865,815.89/39,840.80
  6. Step 6: Final answer
    x = 17,641.86

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Similar ratio
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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.