Home / 26,883.60-40,306.20-12,080.40

Finding the Fourth Proportional to 26,883.60, 40,306.20 and 12,080.40

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Solution

The fourth proportional to 26,883.60, 40,306.20 and 12,080.40 is: 18,111.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,883.60 : 40,306.20 = 12,080.40 : x
  2. Step 2: Convert to fraction form
    26,883.60/40,306.20 = 12,080.40/x
  3. Step 3: Cross multiply
    26,883.60x = 40,306.20 × 12,080.40
  4. Step 4: Simplify right side
    26,883.60x = 486,915,018.48
  5. Step 5: Solve for x
    x = 486,915,018.48/26,883.60
  6. Step 6: Final answer
    x = 18,111.97

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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.