Home / 20,514.19-30,768.55-5,721.87

Finding the Fourth Proportional to 20,514.19, 30,768.55 and 5,721.87

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Solution

The fourth proportional to 20,514.19, 30,768.55 and 5,721.87 is: 8,582.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.19 : 30,768.55 = 5,721.87 : x
  2. Step 2: Convert to fraction form
    20,514.19/30,768.55 = 5,721.87/x
  3. Step 3: Cross multiply
    20,514.19x = 30,768.55 × 5,721.87
  4. Step 4: Simplify right side
    20,514.19x = 176,053,643.19
  5. Step 5: Solve for x
    x = 176,053,643.19/20,514.19
  6. Step 6: Final answer
    x = 8,582.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.