Home / 20,542.41-28,348.79-11,589.08

Finding the Fourth Proportional to 20,542.41, 28,348.79 and 11,589.08

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Solution

The fourth proportional to 20,542.41, 28,348.79 and 11,589.08 is: 15,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.41 : 28,348.79 = 11,589.08 : x
  2. Step 2: Convert to fraction form
    20,542.41/28,348.79 = 11,589.08/x
  3. Step 3: Cross multiply
    20,542.41x = 28,348.79 × 11,589.08
  4. Step 4: Simplify right side
    20,542.41x = 328,536,195.52
  5. Step 5: Solve for x
    x = 328,536,195.52/20,542.41
  6. Step 6: Final answer
    x = 15,993.07

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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.