Home / 26,861.32-40,305.18-12,080.68

Finding the Fourth Proportional to 26,861.32, 40,305.18 and 12,080.68

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Solution

The fourth proportional to 26,861.32, 40,305.18 and 12,080.68 is: 18,126.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,861.32 : 40,305.18 = 12,080.68 : x
  2. Step 2: Convert to fraction form
    26,861.32/40,305.18 = 12,080.68/x
  3. Step 3: Cross multiply
    26,861.32x = 40,305.18 × 12,080.68
  4. Step 4: Simplify right side
    26,861.32x = 486,913,981.92
  5. Step 5: Solve for x
    x = 486,913,981.92/26,861.32
  6. Step 6: Final answer
    x = 18,126.96

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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.