Home / 40,215.10-55,500.78-22,310.14

Finding the Fourth Proportional to 40,215.10, 55,500.78 and 22,310.14

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Solution

The fourth proportional to 40,215.10, 55,500.78 and 22,310.14 is: 30,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,215.10 : 55,500.78 = 22,310.14 : x
  2. Step 2: Convert to fraction form
    40,215.10/55,500.78 = 22,310.14/x
  3. Step 3: Cross multiply
    40,215.10x = 55,500.78 × 22,310.14
  4. Step 4: Simplify right side
    40,215.10x = 1,238,230,171.91
  5. Step 5: Solve for x
    x = 1,238,230,171.91/40,215.10
  6. Step 6: Final answer
    x = 30,790.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.