Home / 28,080.76-38,753.49-16,147.84

Finding the Fourth Proportional to 28,080.76, 38,753.49 and 16,147.84

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Solution

The fourth proportional to 28,080.76, 38,753.49 and 16,147.84 is: 22,285.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.76 : 38,753.49 = 16,147.84 : x
  2. Step 2: Convert to fraction form
    28,080.76/38,753.49 = 16,147.84/x
  3. Step 3: Cross multiply
    28,080.76x = 38,753.49 × 16,147.84
  4. Step 4: Simplify right side
    28,080.76x = 625,785,155.96
  5. Step 5: Solve for x
    x = 625,785,155.96/28,080.76
  6. Step 6: Final answer
    x = 22,285.19

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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.