Home / 36,284.80-54,375.28-20,670.16

Finding the Fourth Proportional to 36,284.80, 54,375.28 and 20,670.16

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Solution

The fourth proportional to 36,284.80, 54,375.28 and 20,670.16 is: 30,975.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,284.80 : 54,375.28 = 20,670.16 : x
  2. Step 2: Convert to fraction form
    36,284.80/54,375.28 = 20,670.16/x
  3. Step 3: Cross multiply
    36,284.80x = 54,375.28 × 20,670.16
  4. Step 4: Simplify right side
    36,284.80x = 1,123,945,737.64
  5. Step 5: Solve for x
    x = 1,123,945,737.64/36,284.80
  6. Step 6: Final answer
    x = 30,975.66

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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.