Home / 31,289.76-43,180.92-17,142.48

Finding the Fourth Proportional to 31,289.76, 43,180.92 and 17,142.48

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Solution

The fourth proportional to 31,289.76, 43,180.92 and 17,142.48 is: 23,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.76 : 43,180.92 = 17,142.48 : x
  2. Step 2: Convert to fraction form
    31,289.76/43,180.92 = 17,142.48/x
  3. Step 3: Cross multiply
    31,289.76x = 43,180.92 × 17,142.48
  4. Step 4: Simplify right side
    31,289.76x = 740,228,057.48
  5. Step 5: Solve for x
    x = 740,228,057.48/31,289.76
  6. Step 6: Final answer
    x = 23,657.20

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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.