Home / 28,727.80-43,091.70-18,748.60

Finding the Fourth Proportional to 28,727.80, 43,091.70 and 18,748.60

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Solution

The fourth proportional to 28,727.80, 43,091.70 and 18,748.60 is: 28,122.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.80 : 43,091.70 = 18,748.60 : x
  2. Step 2: Convert to fraction form
    28,727.80/43,091.70 = 18,748.60/x
  3. Step 3: Cross multiply
    28,727.80x = 43,091.70 × 18,748.60
  4. Step 4: Simplify right side
    28,727.80x = 807,909,046.62
  5. Step 5: Solve for x
    x = 807,909,046.62/28,727.80
  6. Step 6: Final answer
    x = 28,122.90

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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.