Home / 21,908.18-32,812.86-15,363.66

Finding the Fourth Proportional to 21,908.18, 32,812.86 and 15,363.66

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Solution

The fourth proportional to 21,908.18, 32,812.86 and 15,363.66 is: 23,010.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908.18 : 32,812.86 = 15,363.66 : x
  2. Step 2: Convert to fraction form
    21,908.18/32,812.86 = 15,363.66/x
  3. Step 3: Cross multiply
    21,908.18x = 32,812.86 × 15,363.66
  4. Step 4: Simplify right side
    21,908.18x = 504,125,624.67
  5. Step 5: Solve for x
    x = 504,125,624.67/21,908.18
  6. Step 6: Final answer
    x = 23,010.84

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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.