Home / 40,318.65-55,640.43-22,170.15

Finding the Fourth Proportional to 40,318.65, 55,640.43 and 22,170.15

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Solution

The fourth proportional to 40,318.65, 55,640.43 and 22,170.15 is: 30,595.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,318.65 : 55,640.43 = 22,170.15 : x
  2. Step 2: Convert to fraction form
    40,318.65/55,640.43 = 22,170.15/x
  3. Step 3: Cross multiply
    40,318.65x = 55,640.43 × 22,170.15
  4. Step 4: Simplify right side
    40,318.65x = 1,233,556,679.16
  5. Step 5: Solve for x
    x = 1,233,556,679.16/40,318.65
  6. Step 6: Final answer
    x = 30,595.19

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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.