Home / 40,218.31-55,502.18-22,312.65

Finding the Fourth Proportional to 40,218.31, 55,502.18 and 22,312.65

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Solution

The fourth proportional to 40,218.31, 55,502.18 and 22,312.65 is: 30,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,218.31 : 55,502.18 = 22,312.65 : x
  2. Step 2: Convert to fraction form
    40,218.31/55,502.18 = 22,312.65/x
  3. Step 3: Cross multiply
    40,218.31x = 55,502.18 × 22,312.65
  4. Step 4: Simplify right side
    40,218.31x = 1,238,400,716.58
  5. Step 5: Solve for x
    x = 1,238,400,716.58/40,218.31
  6. Step 6: Final answer
    x = 30,791.96

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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.