Home / 28,382.38-39,172.29-16,452.64

Finding the Fourth Proportional to 28,382.38, 39,172.29 and 16,452.64

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Solution

The fourth proportional to 28,382.38, 39,172.29 and 16,452.64 is: 22,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.38 : 39,172.29 = 16,452.64 : x
  2. Step 2: Convert to fraction form
    28,382.38/39,172.29 = 16,452.64/x
  3. Step 3: Cross multiply
    28,382.38x = 39,172.29 × 16,452.64
  4. Step 4: Simplify right side
    28,382.38x = 644,487,444.82
  5. Step 5: Solve for x
    x = 644,487,444.82/28,382.38
  6. Step 6: Final answer
    x = 22,707.31

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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.