Home / 36,185.40-54,287.28-15,121.80

Finding the Fourth Proportional to 36,185.40, 54,287.28 and 15,121.80

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Solution

The fourth proportional to 36,185.40, 54,287.28 and 15,121.80 is: 22,686.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,185.40 : 54,287.28 = 15,121.80 : x
  2. Step 2: Convert to fraction form
    36,185.40/54,287.28 = 15,121.80/x
  3. Step 3: Cross multiply
    36,185.40x = 54,287.28 × 15,121.80
  4. Step 4: Simplify right side
    36,185.40x = 820,921,390.70
  5. Step 5: Solve for x
    x = 820,921,390.70/36,185.40
  6. Step 6: Final answer
    x = 22,686.54

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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.