Home / 28,414.17-39,211.29-15,493.45

Finding the Fourth Proportional to 28,414.17, 39,211.29 and 15,493.45

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Solution

The fourth proportional to 28,414.17, 39,211.29 and 15,493.45 is: 21,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,414.17 : 39,211.29 = 15,493.45 : x
  2. Step 2: Convert to fraction form
    28,414.17/39,211.29 = 15,493.45/x
  3. Step 3: Cross multiply
    28,414.17x = 39,211.29 × 15,493.45
  4. Step 4: Simplify right side
    28,414.17x = 607,518,161.05
  5. Step 5: Solve for x
    x = 607,518,161.05/28,414.17
  6. Step 6: Final answer
    x = 21,380.82

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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.