Home / 20,264.96-27,962.78-11,311.22

Finding the Fourth Proportional to 20,264.96, 27,962.78 and 11,311.22

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Solution

The fourth proportional to 20,264.96, 27,962.78 and 11,311.22 is: 15,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.96 : 27,962.78 = 11,311.22 : x
  2. Step 2: Convert to fraction form
    20,264.96/27,962.78 = 11,311.22/x
  3. Step 3: Cross multiply
    20,264.96x = 27,962.78 × 11,311.22
  4. Step 4: Simplify right side
    20,264.96x = 316,293,156.39
  5. Step 5: Solve for x
    x = 316,293,156.39/20,264.96
  6. Step 6: Final answer
    x = 15,607.88

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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.