Home / 23,320.71-32,180.90-13,251.20

Finding the Fourth Proportional to 23,320.71, 32,180.90 and 13,251.20

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Solution

The fourth proportional to 23,320.71, 32,180.90 and 13,251.20 is: 18,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,320.71 : 32,180.90 = 13,251.20 : x
  2. Step 2: Convert to fraction form
    23,320.71/32,180.90 = 13,251.20/x
  3. Step 3: Cross multiply
    23,320.71x = 32,180.90 × 13,251.20
  4. Step 4: Simplify right side
    23,320.71x = 426,435,314.92
  5. Step 5: Solve for x
    x = 426,435,314.92/23,320.71
  6. Step 6: Final answer
    x = 18,285.69

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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.