Home / 31,722.36-47,542.20-17,681.82

Finding the Fourth Proportional to 31,722.36, 47,542.20 and 17,681.82

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Solution

The fourth proportional to 31,722.36, 47,542.20 and 17,681.82 is: 26,499.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,722.36 : 47,542.20 = 17,681.82 : x
  2. Step 2: Convert to fraction form
    31,722.36/47,542.20 = 17,681.82/x
  3. Step 3: Cross multiply
    31,722.36x = 47,542.20 × 17,681.82
  4. Step 4: Simplify right side
    31,722.36x = 840,632,622.80
  5. Step 5: Solve for x
    x = 840,632,622.80/31,722.36
  6. Step 6: Final answer
    x = 26,499.69

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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.