Home / 38,570.21-57,864-13,612.04

Finding the Fourth Proportional to 38,570.21, 57,864 and 13,612.04

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Solution

The fourth proportional to 38,570.21, 57,864 and 13,612.04 is: 20,421.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,570.21 : 57,864 = 13,612.04 : x
  2. Step 2: Convert to fraction form
    38,570.21/57,864 = 13,612.04/x
  3. Step 3: Cross multiply
    38,570.21x = 57,864 × 13,612.04
  4. Step 4: Simplify right side
    38,570.21x = 787,647,082.56
  5. Step 5: Solve for x
    x = 787,647,082.56/38,570.21
  6. Step 6: Final answer
    x = 20,421.13

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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.