Home / 31,314.20-43,212.66-17,166.56

Finding the Fourth Proportional to 31,314.20, 43,212.66 and 17,166.56

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Solution

The fourth proportional to 31,314.20, 43,212.66 and 17,166.56 is: 23,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,314.20 : 43,212.66 = 17,166.56 : x
  2. Step 2: Convert to fraction form
    31,314.20/43,212.66 = 17,166.56/x
  3. Step 3: Cross multiply
    31,314.20x = 43,212.66 × 17,166.56
  4. Step 4: Simplify right side
    31,314.20x = 741,812,720.65
  5. Step 5: Solve for x
    x = 741,812,720.65/31,314.20
  6. Step 6: Final answer
    x = 23,689.34

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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.