Home / 31,315.91-43,215.91-17,169.66

Finding the Fourth Proportional to 31,315.91, 43,215.91 and 17,169.66

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Solution

The fourth proportional to 31,315.91, 43,215.91 and 17,169.66 is: 23,694.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,315.91 : 43,215.91 = 17,169.66 : x
  2. Step 2: Convert to fraction form
    31,315.91/43,215.91 = 17,169.66/x
  3. Step 3: Cross multiply
    31,315.91x = 43,215.91 × 17,169.66
  4. Step 4: Simplify right side
    31,315.91x = 742,002,481.29
  5. Step 5: Solve for x
    x = 742,002,481.29/31,315.91
  6. Step 6: Final answer
    x = 23,694.11

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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.