Home / 40,115.22-55,356.66-22,209.18

Finding the Fourth Proportional to 40,115.22, 55,356.66 and 22,209.18

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Solution

The fourth proportional to 40,115.22, 55,356.66 and 22,209.18 is: 30,647.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,115.22 : 55,356.66 = 22,209.18 : x
  2. Step 2: Convert to fraction form
    40,115.22/55,356.66 = 22,209.18/x
  3. Step 3: Cross multiply
    40,115.22x = 55,356.66 × 22,209.18
  4. Step 4: Simplify right side
    40,115.22x = 1,229,426,026.14
  5. Step 5: Solve for x
    x = 1,229,426,026.14/40,115.22
  6. Step 6: Final answer
    x = 30,647.37

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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.