Home / 26,531.20-39,883.20-18,793.60

Finding the Fourth Proportional to 26,531.20, 39,883.20 and 18,793.60

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Solution

The fourth proportional to 26,531.20, 39,883.20 and 18,793.60 is: 28,251.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,531.20 : 39,883.20 = 18,793.60 : x
  2. Step 2: Convert to fraction form
    26,531.20/39,883.20 = 18,793.60/x
  3. Step 3: Cross multiply
    26,531.20x = 39,883.20 × 18,793.60
  4. Step 4: Simplify right side
    26,531.20x = 749,548,907.52
  5. Step 5: Solve for x
    x = 749,548,907.52/26,531.20
  6. Step 6: Final answer
    x = 28,251.60

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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.