Home / 39,728.76-59,600.82-13,437.78

Finding the Fourth Proportional to 39,728.76, 59,600.82 and 13,437.78

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Solution

The fourth proportional to 39,728.76, 59,600.82 and 13,437.78 is: 20,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,728.76 : 59,600.82 = 13,437.78 : x
  2. Step 2: Convert to fraction form
    39,728.76/59,600.82 = 13,437.78/x
  3. Step 3: Cross multiply
    39,728.76x = 59,600.82 × 13,437.78
  4. Step 4: Simplify right side
    39,728.76x = 800,902,706.98
  5. Step 5: Solve for x
    x = 800,902,706.98/39,728.76
  6. Step 6: Final answer
    x = 20,159.27

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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.