Home / 20,233.88-27,915.43-11,731.32

Finding the Fourth Proportional to 20,233.88, 27,915.43 and 11,731.32

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Solution

The fourth proportional to 20,233.88, 27,915.43 and 11,731.32 is: 16,184.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.88 : 27,915.43 = 11,731.32 : x
  2. Step 2: Convert to fraction form
    20,233.88/27,915.43 = 11,731.32/x
  3. Step 3: Cross multiply
    20,233.88x = 27,915.43 × 11,731.32
  4. Step 4: Simplify right side
    20,233.88x = 327,484,824.55
  5. Step 5: Solve for x
    x = 327,484,824.55/20,233.88
  6. Step 6: Final answer
    x = 16,184.97

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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.