Home / 20,229.79-27,917.13-11,277.10

Finding the Fourth Proportional to 20,229.79, 27,917.13 and 11,277.10

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Solution

The fourth proportional to 20,229.79, 27,917.13 and 11,277.10 is: 15,562.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.79 : 27,917.13 = 11,277.10 : x
  2. Step 2: Convert to fraction form
    20,229.79/27,917.13 = 11,277.10/x
  3. Step 3: Cross multiply
    20,229.79x = 27,917.13 × 11,277.10
  4. Step 4: Simplify right side
    20,229.79x = 314,824,233.67
  5. Step 5: Solve for x
    x = 314,824,233.67/20,229.79
  6. Step 6: Final answer
    x = 15,562.41

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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.