Home / 28,677.41-39,581.15-15,934.97

Finding the Fourth Proportional to 28,677.41, 39,581.15 and 15,934.97

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Solution

The fourth proportional to 28,677.41, 39,581.15 and 15,934.97 is: 21,993.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,677.41 : 39,581.15 = 15,934.97 : x
  2. Step 2: Convert to fraction form
    28,677.41/39,581.15 = 15,934.97/x
  3. Step 3: Cross multiply
    28,677.41x = 39,581.15 × 15,934.97
  4. Step 4: Simplify right side
    28,677.41x = 630,724,576.61
  5. Step 5: Solve for x
    x = 630,724,576.61/28,677.41
  6. Step 6: Final answer
    x = 21,993.78

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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.