Home / 28,386.92-39,171.67-16,451.03

Finding the Fourth Proportional to 28,386.92, 39,171.67 and 16,451.03

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Solution

The fourth proportional to 28,386.92, 39,171.67 and 16,451.03 is: 22,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.92 : 39,171.67 = 16,451.03 : x
  2. Step 2: Convert to fraction form
    28,386.92/39,171.67 = 16,451.03/x
  3. Step 3: Cross multiply
    28,386.92x = 39,171.67 × 16,451.03
  4. Step 4: Simplify right side
    28,386.92x = 644,414,375.12
  5. Step 5: Solve for x
    x = 644,414,375.12/28,386.92
  6. Step 6: Final answer
    x = 22,701.10

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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.