Home / 31,638.20-43,660.22-17,490.74

Finding the Fourth Proportional to 31,638.20, 43,660.22 and 17,490.74

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Solution

The fourth proportional to 31,638.20, 43,660.22 and 17,490.74 is: 24,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,638.20 : 43,660.22 = 17,490.74 : x
  2. Step 2: Convert to fraction form
    31,638.20/43,660.22 = 17,490.74/x
  3. Step 3: Cross multiply
    31,638.20x = 43,660.22 × 17,490.74
  4. Step 4: Simplify right side
    31,638.20x = 763,649,556.36
  5. Step 5: Solve for x
    x = 763,649,556.36/31,638.20
  6. Step 6: Final answer
    x = 24,136.95

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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.