Home / 28,132.17-38,820.82-15,382.82

Finding the Fourth Proportional to 28,132.17, 38,820.82 and 15,382.82

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Solution

The fourth proportional to 28,132.17, 38,820.82 and 15,382.82 is: 21,227.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.17 : 38,820.82 = 15,382.82 : x
  2. Step 2: Convert to fraction form
    28,132.17/38,820.82 = 15,382.82/x
  3. Step 3: Cross multiply
    28,132.17x = 38,820.82 × 15,382.82
  4. Step 4: Simplify right side
    28,132.17x = 597,173,550.80
  5. Step 5: Solve for x
    x = 597,173,550.80/28,132.17
  6. Step 6: Final answer
    x = 21,227.43

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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.