Home / 20,532-28,334.16-11,100.56

Finding the Fourth Proportional to 20,532, 28,334.16 and 11,100.56

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Solution

The fourth proportional to 20,532, 28,334.16 and 11,100.56 is: 15,318.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,532 : 28,334.16 = 11,100.56 : x
  2. Step 2: Convert to fraction form
    20,532/28,334.16 = 11,100.56/x
  3. Step 3: Cross multiply
    20,532x = 28,334.16 × 11,100.56
  4. Step 4: Simplify right side
    20,532x = 314,525,113.97
  5. Step 5: Solve for x
    x = 314,525,113.97/20,532
  6. Step 6: Final answer
    x = 15,318.78

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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.