Home / 39,754.35-54,861.57-21,851.01

Finding the Fourth Proportional to 39,754.35, 54,861.57 and 21,851.01

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Solution

The fourth proportional to 39,754.35, 54,861.57 and 21,851.01 is: 30,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.35 : 54,861.57 = 21,851.01 : x
  2. Step 2: Convert to fraction form
    39,754.35/54,861.57 = 21,851.01/x
  3. Step 3: Cross multiply
    39,754.35x = 54,861.57 × 21,851.01
  4. Step 4: Simplify right side
    39,754.35x = 1,198,780,714.69
  5. Step 5: Solve for x
    x = 1,198,780,714.69/39,754.35
  6. Step 6: Final answer
    x = 30,154.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.