Home / 31,449.69-47,159.91-18,305.82

Finding the Fourth Proportional to 31,449.69, 47,159.91 and 18,305.82

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Solution

The fourth proportional to 31,449.69, 47,159.91 and 18,305.82 is: 27,450.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.69 : 47,159.91 = 18,305.82 : x
  2. Step 2: Convert to fraction form
    31,449.69/47,159.91 = 18,305.82/x
  3. Step 3: Cross multiply
    31,449.69x = 47,159.91 × 18,305.82
  4. Step 4: Simplify right side
    31,449.69x = 863,300,823.68
  5. Step 5: Solve for x
    x = 863,300,823.68/31,449.69
  6. Step 6: Final answer
    x = 27,450.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.