Home / 26,781.60-40,201.20-15,117.60

Finding the Fourth Proportional to 26,781.60, 40,201.20 and 15,117.60

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Solution

The fourth proportional to 26,781.60, 40,201.20 and 15,117.60 is: 22,692.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.60 : 40,201.20 = 15,117.60 : x
  2. Step 2: Convert to fraction form
    26,781.60/40,201.20 = 15,117.60/x
  3. Step 3: Cross multiply
    26,781.60x = 40,201.20 × 15,117.60
  4. Step 4: Simplify right side
    26,781.60x = 607,745,661.12
  5. Step 5: Solve for x
    x = 607,745,661.12/26,781.60
  6. Step 6: Final answer
    x = 22,692.66

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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.