Home / 20,542.34-28,347.97-11,589.61

Finding the Fourth Proportional to 20,542.34, 28,347.97 and 11,589.61

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Solution

The fourth proportional to 20,542.34, 28,347.97 and 11,589.61 is: 15,993.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.34 : 28,347.97 = 11,589.61 : x
  2. Step 2: Convert to fraction form
    20,542.34/28,347.97 = 11,589.61/x
  3. Step 3: Cross multiply
    20,542.34x = 28,347.97 × 11,589.61
  4. Step 4: Simplify right side
    20,542.34x = 328,541,916.59
  5. Step 5: Solve for x
    x = 328,541,916.59/20,542.34
  6. Step 6: Final answer
    x = 15,993.40

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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.