Home / 21,225.24-29,288.79-11,793.20

Finding the Fourth Proportional to 21,225.24, 29,288.79 and 11,793.20

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Solution

The fourth proportional to 21,225.24, 29,288.79 and 11,793.20 is: 16,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.24 : 29,288.79 = 11,793.20 : x
  2. Step 2: Convert to fraction form
    21,225.24/29,288.79 = 11,793.20/x
  3. Step 3: Cross multiply
    21,225.24x = 29,288.79 × 11,793.20
  4. Step 4: Simplify right side
    21,225.24x = 345,408,411.78
  5. Step 5: Solve for x
    x = 345,408,411.78/21,225.24
  6. Step 6: Final answer
    x = 16,273.47

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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.