Home / 38,675.57-58,021.86-12,382.97

Finding the Fourth Proportional to 38,675.57, 58,021.86 and 12,382.97

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Solution

The fourth proportional to 38,675.57, 58,021.86 and 12,382.97 is: 18,577.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,675.57 : 58,021.86 = 12,382.97 : x
  2. Step 2: Convert to fraction form
    38,675.57/58,021.86 = 12,382.97/x
  3. Step 3: Cross multiply
    38,675.57x = 58,021.86 × 12,382.97
  4. Step 4: Simplify right side
    38,675.57x = 718,482,951.72
  5. Step 5: Solve for x
    x = 718,482,951.72/38,675.57
  6. Step 6: Final answer
    x = 18,577.18

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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.