Home / 18,700.80-28,046.40-5,550.18

Finding the Fourth Proportional to 18,700.80, 28,046.40 and 5,550.18

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Solution

The fourth proportional to 18,700.80, 28,046.40 and 5,550.18 is: 8,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,700.80 : 28,046.40 = 5,550.18 : x
  2. Step 2: Convert to fraction form
    18,700.80/28,046.40 = 5,550.18/x
  3. Step 3: Cross multiply
    18,700.80x = 28,046.40 × 5,550.18
  4. Step 4: Simplify right side
    18,700.80x = 155,662,568.35
  5. Step 5: Solve for x
    x = 155,662,568.35/18,700.80
  6. Step 6: Final answer
    x = 8,323.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.