Home / 28,451.98-39,264.96-15,876.73

Finding the Fourth Proportional to 28,451.98, 39,264.96 and 15,876.73

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Solution

The fourth proportional to 28,451.98, 39,264.96 and 15,876.73 is: 21,910.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,451.98 : 39,264.96 = 15,876.73 : x
  2. Step 2: Convert to fraction form
    28,451.98/39,264.96 = 15,876.73/x
  3. Step 3: Cross multiply
    28,451.98x = 39,264.96 × 15,876.73
  4. Step 4: Simplify right side
    28,451.98x = 623,399,168.38
  5. Step 5: Solve for x
    x = 623,399,168.38/28,451.98
  6. Step 6: Final answer
    x = 21,910.57

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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.