Home / 26,902.80-40,325.40-12,109.20

Finding the Fourth Proportional to 26,902.80, 40,325.40 and 12,109.20

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Solution

The fourth proportional to 26,902.80, 40,325.40 and 12,109.20 is: 18,150.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,902.80 : 40,325.40 = 12,109.20 : x
  2. Step 2: Convert to fraction form
    26,902.80/40,325.40 = 12,109.20/x
  3. Step 3: Cross multiply
    26,902.80x = 40,325.40 × 12,109.20
  4. Step 4: Simplify right side
    26,902.80x = 488,308,333.68
  5. Step 5: Solve for x
    x = 488,308,333.68/26,902.80
  6. Step 6: Final answer
    x = 18,150.84

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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.