Home / 20,545.38-28,351.62-12,046.36

Finding the Fourth Proportional to 20,545.38, 28,351.62 and 12,046.36

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Solution

The fourth proportional to 20,545.38, 28,351.62 and 12,046.36 is: 16,623.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,545.38 : 28,351.62 = 12,046.36 : x
  2. Step 2: Convert to fraction form
    20,545.38/28,351.62 = 12,046.36/x
  3. Step 3: Cross multiply
    20,545.38x = 28,351.62 × 12,046.36
  4. Step 4: Simplify right side
    20,545.38x = 341,533,821.10
  5. Step 5: Solve for x
    x = 341,533,821.10/20,545.38
  6. Step 6: Final answer
    x = 16,623.39

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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.