Home / 28,691.85-43,001.31-16,218.87

Finding the Fourth Proportional to 28,691.85, 43,001.31 and 16,218.87

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Solution

The fourth proportional to 28,691.85, 43,001.31 and 16,218.87 is: 24,307.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.85 : 43,001.31 = 16,218.87 : x
  2. Step 2: Convert to fraction form
    28,691.85/43,001.31 = 16,218.87/x
  3. Step 3: Cross multiply
    28,691.85x = 43,001.31 × 16,218.87
  4. Step 4: Simplify right side
    28,691.85x = 697,432,556.29
  5. Step 5: Solve for x
    x = 697,432,556.29/28,691.85
  6. Step 6: Final answer
    x = 24,307.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.