Home / 28,366.03-39,144.79-15,618.95

Finding the Fourth Proportional to 28,366.03, 39,144.79 and 15,618.95

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Solution

The fourth proportional to 28,366.03, 39,144.79 and 15,618.95 is: 21,553.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,366.03 : 39,144.79 = 15,618.95 : x
  2. Step 2: Convert to fraction form
    28,366.03/39,144.79 = 15,618.95/x
  3. Step 3: Cross multiply
    28,366.03x = 39,144.79 × 15,618.95
  4. Step 4: Simplify right side
    28,366.03x = 611,400,517.77
  5. Step 5: Solve for x
    x = 611,400,517.77/28,366.03
  6. Step 6: Final answer
    x = 21,553.97

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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.