Home / 38,387.67-52,974.12-21,391.83

Finding the Fourth Proportional to 38,387.67, 52,974.12 and 21,391.83

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Solution

The fourth proportional to 38,387.67, 52,974.12 and 21,391.83 is: 29,520.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,387.67 : 52,974.12 = 21,391.83 : x
  2. Step 2: Convert to fraction form
    38,387.67/52,974.12 = 21,391.83/x
  3. Step 3: Cross multiply
    38,387.67x = 52,974.12 × 21,391.83
  4. Step 4: Simplify right side
    38,387.67x = 1,133,213,369.44
  5. Step 5: Solve for x
    x = 1,133,213,369.44/38,387.67
  6. Step 6: Final answer
    x = 29,520.24

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1.5x scale

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.