Home / 20,542.46-28,348.58-11,589.88

Finding the Fourth Proportional to 20,542.46, 28,348.58 and 11,589.88

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Solution

The fourth proportional to 20,542.46, 28,348.58 and 11,589.88 is: 15,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.46 : 28,348.58 = 11,589.88 : x
  2. Step 2: Convert to fraction form
    20,542.46/28,348.58 = 11,589.88/x
  3. Step 3: Cross multiply
    20,542.46x = 28,348.58 × 11,589.88
  4. Step 4: Simplify right side
    20,542.46x = 328,556,598.47
  5. Step 5: Solve for x
    x = 328,556,598.47/20,542.46
  6. Step 6: Final answer
    x = 15,994.03

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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.