Home / 28,382.38-39,167.23-16,445.43

Finding the Fourth Proportional to 28,382.38, 39,167.23 and 16,445.43

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Solution

The fourth proportional to 28,382.38, 39,167.23 and 16,445.43 is: 22,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.38 : 39,167.23 = 16,445.43 : x
  2. Step 2: Convert to fraction form
    28,382.38/39,167.23 = 16,445.43/x
  3. Step 3: Cross multiply
    28,382.38x = 39,167.23 × 16,445.43
  4. Step 4: Simplify right side
    28,382.38x = 644,121,939.26
  5. Step 5: Solve for x
    x = 644,121,939.26/28,382.38
  6. Step 6: Final answer
    x = 22,694.43

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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.