Home / 28,854.28-39,820.11-16,279

Finding the Fourth Proportional to 28,854.28, 39,820.11 and 16,279

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Solution

The fourth proportional to 28,854.28, 39,820.11 and 16,279 is: 22,465.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,854.28 : 39,820.11 = 16,279 : x
  2. Step 2: Convert to fraction form
    28,854.28/39,820.11 = 16,279/x
  3. Step 3: Cross multiply
    28,854.28x = 39,820.11 × 16,279
  4. Step 4: Simplify right side
    28,854.28x = 648,231,570.69
  5. Step 5: Solve for x
    x = 648,231,570.69/28,854.28
  6. Step 6: Final answer
    x = 22,465.70

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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.