Home / 28,723.17-39,633.13-15,974.68

Finding the Fourth Proportional to 28,723.17, 39,633.13 and 15,974.68

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Solution

The fourth proportional to 28,723.17, 39,633.13 and 15,974.68 is: 22,042.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.17 : 39,633.13 = 15,974.68 : x
  2. Step 2: Convert to fraction form
    28,723.17/39,633.13 = 15,974.68/x
  3. Step 3: Cross multiply
    28,723.17x = 39,633.13 × 15,974.68
  4. Step 4: Simplify right side
    28,723.17x = 633,126,569.15
  5. Step 5: Solve for x
    x = 633,126,569.15/28,723.17
  6. Step 6: Final answer
    x = 22,042.36

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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.