Home / 38,689.10-58,042.40-13,729.18

Finding the Fourth Proportional to 38,689.10, 58,042.40 and 13,729.18

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Solution

The fourth proportional to 38,689.10, 58,042.40 and 13,729.18 is: 20,596.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.10 : 58,042.40 = 13,729.18 : x
  2. Step 2: Convert to fraction form
    38,689.10/58,042.40 = 13,729.18/x
  3. Step 3: Cross multiply
    38,689.10x = 58,042.40 × 13,729.18
  4. Step 4: Simplify right side
    38,689.10x = 796,874,557.23
  5. Step 5: Solve for x
    x = 796,874,557.23/38,689.10
  6. Step 6: Final answer
    x = 20,596.88

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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.