Home / 28,750.20-39,673.12-16,172.52

Finding the Fourth Proportional to 28,750.20, 39,673.12 and 16,172.52

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Solution

The fourth proportional to 28,750.20, 39,673.12 and 16,172.52 is: 22,316.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,750.20 : 39,673.12 = 16,172.52 : x
  2. Step 2: Convert to fraction form
    28,750.20/39,673.12 = 16,172.52/x
  3. Step 3: Cross multiply
    28,750.20x = 39,673.12 × 16,172.52
  4. Step 4: Simplify right side
    28,750.20x = 641,614,326.66
  5. Step 5: Solve for x
    x = 641,614,326.66/28,750.20
  6. Step 6: Final answer
    x = 22,316.86

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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.