Home / 38,780.46-58,170.90-13,821.48

Finding the Fourth Proportional to 38,780.46, 58,170.90 and 13,821.48

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Solution

The fourth proportional to 38,780.46, 58,170.90 and 13,821.48 is: 20,732.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,780.46 : 58,170.90 = 13,821.48 : x
  2. Step 2: Convert to fraction form
    38,780.46/58,170.90 = 13,821.48/x
  3. Step 3: Cross multiply
    38,780.46x = 58,170.90 × 13,821.48
  4. Step 4: Simplify right side
    38,780.46x = 804,007,930.93
  5. Step 5: Solve for x
    x = 804,007,930.93/38,780.46
  6. Step 6: Final answer
    x = 20,732.29

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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.