Home / 31,340.55-47,029.23-11,632.80

Finding the Fourth Proportional to 31,340.55, 47,029.23 and 11,632.80

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Solution

The fourth proportional to 31,340.55, 47,029.23 and 11,632.80 is: 17,456.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,340.55 : 47,029.23 = 11,632.80 : x
  2. Step 2: Convert to fraction form
    31,340.55/47,029.23 = 11,632.80/x
  3. Step 3: Cross multiply
    31,340.55x = 47,029.23 × 11,632.80
  4. Step 4: Simplify right side
    31,340.55x = 547,081,626.74
  5. Step 5: Solve for x
    x = 547,081,626.74/31,340.55
  6. Step 6: Final answer
    x = 17,456.03

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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.