Home / 26,883.20-40,319.04-8,405.12

Finding the Fourth Proportional to 26,883.20, 40,319.04 and 8,405.12

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Solution

The fourth proportional to 26,883.20, 40,319.04 and 8,405.12 is: 12,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,883.20 : 40,319.04 = 8,405.12 : x
  2. Step 2: Convert to fraction form
    26,883.20/40,319.04 = 8,405.12/x
  3. Step 3: Cross multiply
    26,883.20x = 40,319.04 × 8,405.12
  4. Step 4: Simplify right side
    26,883.20x = 338,886,369.48
  5. Step 5: Solve for x
    x = 338,886,369.48/26,883.20
  6. Step 6: Final answer
    x = 12,605.88

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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.