Home / 21,225.54-29,289.94-11,793.78

Finding the Fourth Proportional to 21,225.54, 29,289.94 and 11,793.78

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Solution

The fourth proportional to 21,225.54, 29,289.94 and 11,793.78 is: 16,274.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.54 : 29,289.94 = 11,793.78 : x
  2. Step 2: Convert to fraction form
    21,225.54/29,289.94 = 11,793.78/x
  3. Step 3: Cross multiply
    21,225.54x = 29,289.94 × 11,793.78
  4. Step 4: Simplify right side
    21,225.54x = 345,439,108.57
  5. Step 5: Solve for x
    x = 345,439,108.57/21,225.54
  6. Step 6: Final answer
    x = 16,274.69

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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.