Home / 20,229.66-27,915.93-11,277.90

Finding the Fourth Proportional to 20,229.66, 27,915.93 and 11,277.90

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Solution

The fourth proportional to 20,229.66, 27,915.93 and 11,277.90 is: 15,562.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.66 : 27,915.93 = 11,277.90 : x
  2. Step 2: Convert to fraction form
    20,229.66/27,915.93 = 11,277.90/x
  3. Step 3: Cross multiply
    20,229.66x = 27,915.93 × 11,277.90
  4. Step 4: Simplify right side
    20,229.66x = 314,833,066.95
  5. Step 5: Solve for x
    x = 314,833,066.95/20,229.66
  6. Step 6: Final answer
    x = 15,562.94

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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.