Home / 20,073.77-27,702.76-12,115.83

Finding the Fourth Proportional to 20,073.77, 27,702.76 and 12,115.83

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Solution

The fourth proportional to 20,073.77, 27,702.76 and 12,115.83 is: 16,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.77 : 27,702.76 = 12,115.83 : x
  2. Step 2: Convert to fraction form
    20,073.77/27,702.76 = 12,115.83/x
  3. Step 3: Cross multiply
    20,073.77x = 27,702.76 × 12,115.83
  4. Step 4: Simplify right side
    20,073.77x = 335,641,871.18
  5. Step 5: Solve for x
    x = 335,641,871.18/20,073.77
  6. Step 6: Final answer
    x = 16,720.42

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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.