Home / 20,247.90-27,944.52-11,864.40

Finding the Fourth Proportional to 20,247.90, 27,944.52 and 11,864.40

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Solution

The fourth proportional to 20,247.90, 27,944.52 and 11,864.40 is: 16,374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.90 : 27,944.52 = 11,864.40 : x
  2. Step 2: Convert to fraction form
    20,247.90/27,944.52 = 11,864.40/x
  3. Step 3: Cross multiply
    20,247.90x = 27,944.52 × 11,864.40
  4. Step 4: Simplify right side
    20,247.90x = 331,544,963.09
  5. Step 5: Solve for x
    x = 331,544,963.09/20,247.90
  6. Step 6: Final answer
    x = 16,374.29

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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.