Home / 21,367.74-32,047.91-5,781.72

Finding the Fourth Proportional to 21,367.74, 32,047.91 and 5,781.72

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Solution

The fourth proportional to 21,367.74, 32,047.91 and 5,781.72 is: 8,671.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.74 : 32,047.91 = 5,781.72 : x
  2. Step 2: Convert to fraction form
    21,367.74/32,047.91 = 5,781.72/x
  3. Step 3: Cross multiply
    21,367.74x = 32,047.91 × 5,781.72
  4. Step 4: Simplify right side
    21,367.74x = 185,292,042.21
  5. Step 5: Solve for x
    x = 185,292,042.21/21,367.74
  6. Step 6: Final answer
    x = 8,671.58

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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.