Home / 23,180.96-34,780.08-12,789.92

Finding the Fourth Proportional to 23,180.96, 34,780.08 and 12,789.92

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Solution

The fourth proportional to 23,180.96, 34,780.08 and 12,789.92 is: 19,189.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.96 : 34,780.08 = 12,789.92 : x
  2. Step 2: Convert to fraction form
    23,180.96/34,780.08 = 12,789.92/x
  3. Step 3: Cross multiply
    23,180.96x = 34,780.08 × 12,789.92
  4. Step 4: Simplify right side
    23,180.96x = 444,834,440.79
  5. Step 5: Solve for x
    x = 444,834,440.79/23,180.96
  6. Step 6: Final answer
    x = 19,189.65

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1.5x scale

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.