Home / 40,115.52-55,357.32-22,210.20

Finding the Fourth Proportional to 40,115.52, 55,357.32 and 22,210.20

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Solution

The fourth proportional to 40,115.52, 55,357.32 and 22,210.20 is: 30,648.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,115.52 : 55,357.32 = 22,210.20 : x
  2. Step 2: Convert to fraction form
    40,115.52/55,357.32 = 22,210.20/x
  3. Step 3: Cross multiply
    40,115.52x = 55,357.32 × 22,210.20
  4. Step 4: Simplify right side
    40,115.52x = 1,229,497,148.66
  5. Step 5: Solve for x
    x = 1,229,497,148.66/40,115.52
  6. Step 6: Final answer
    x = 30,648.91

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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.