Home / 21,225.76-29,289.36-11,793.28

Finding the Fourth Proportional to 21,225.76, 29,289.36 and 11,793.28

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Solution

The fourth proportional to 21,225.76, 29,289.36 and 11,793.28 is: 16,273.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,225.76 : 29,289.36 = 11,793.28 : x
  2. Step 2: Convert to fraction form
    21,225.76/29,289.36 = 11,793.28/x
  3. Step 3: Cross multiply
    21,225.76x = 29,289.36 × 11,793.28
  4. Step 4: Simplify right side
    21,225.76x = 345,417,623.50
  5. Step 5: Solve for x
    x = 345,417,623.50/21,225.76
  6. Step 6: Final answer
    x = 16,273.51

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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.