Home / 23,789.78-32,831.90-13,180.40

Finding the Fourth Proportional to 23,789.78, 32,831.90 and 13,180.40

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Solution

The fourth proportional to 23,789.78, 32,831.90 and 13,180.40 is: 18,190.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,789.78 : 32,831.90 = 13,180.40 : x
  2. Step 2: Convert to fraction form
    23,789.78/32,831.90 = 13,180.40/x
  3. Step 3: Cross multiply
    23,789.78x = 32,831.90 × 13,180.40
  4. Step 4: Simplify right side
    23,789.78x = 432,737,344.70
  5. Step 5: Solve for x
    x = 432,737,344.70/23,789.78
  6. Step 6: Final answer
    x = 18,190.06

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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.