Home / 20,253.79-27,945.73-11,750.97

Finding the Fourth Proportional to 20,253.79, 27,945.73 and 11,750.97

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Solution

The fourth proportional to 20,253.79, 27,945.73 and 11,750.97 is: 16,213.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,253.79 : 27,945.73 = 11,750.97 : x
  2. Step 2: Convert to fraction form
    20,253.79/27,945.73 = 11,750.97/x
  3. Step 3: Cross multiply
    20,253.79x = 27,945.73 × 11,750.97
  4. Step 4: Simplify right side
    20,253.79x = 328,389,376.10
  5. Step 5: Solve for x
    x = 328,389,376.10/20,253.79
  6. Step 6: Final answer
    x = 16,213.73

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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.