Home / 20,370.43-30,514.06-10,488.97

Finding the Fourth Proportional to 20,370.43, 30,514.06 and 10,488.97

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Solution

The fourth proportional to 20,370.43, 30,514.06 and 10,488.97 is: 15,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,370.43 : 30,514.06 = 10,488.97 : x
  2. Step 2: Convert to fraction form
    20,370.43/30,514.06 = 10,488.97/x
  3. Step 3: Cross multiply
    20,370.43x = 30,514.06 × 10,488.97
  4. Step 4: Simplify right side
    20,370.43x = 320,061,059.92
  5. Step 5: Solve for x
    x = 320,061,059.92/20,370.43
  6. Step 6: Final answer
    x = 15,712.04

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1.5x scale

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.