Home / 40,310.40-55,632.32-22,411.20

Finding the Fourth Proportional to 40,310.40, 55,632.32 and 22,411.20

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Solution

The fourth proportional to 40,310.40, 55,632.32 and 22,411.20 is: 30,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,310.40 : 55,632.32 = 22,411.20 : x
  2. Step 2: Convert to fraction form
    40,310.40/55,632.32 = 22,411.20/x
  3. Step 3: Cross multiply
    40,310.40x = 55,632.32 × 22,411.20
  4. Step 4: Simplify right side
    40,310.40x = 1,246,787,049.98
  5. Step 5: Solve for x
    x = 1,246,787,049.98/40,310.40
  6. Step 6: Final answer
    x = 30,929.66

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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.