Home / 20,514.06-28,304.10-12,553.38

Finding the Fourth Proportional to 20,514.06, 28,304.10 and 12,553.38

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Solution

The fourth proportional to 20,514.06, 28,304.10 and 12,553.38 is: 17,320.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.06 : 28,304.10 = 12,553.38 : x
  2. Step 2: Convert to fraction form
    20,514.06/28,304.10 = 12,553.38/x
  3. Step 3: Cross multiply
    20,514.06x = 28,304.10 × 12,553.38
  4. Step 4: Simplify right side
    20,514.06x = 355,312,122.86
  5. Step 5: Solve for x
    x = 355,312,122.86/20,514.06
  6. Step 6: Final answer
    x = 17,320.42

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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.