Home / 20,081.52-27,714.96-11,698.56

Finding the Fourth Proportional to 20,081.52, 27,714.96 and 11,698.56

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Solution

The fourth proportional to 20,081.52, 27,714.96 and 11,698.56 is: 16,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081.52 : 27,714.96 = 11,698.56 : x
  2. Step 2: Convert to fraction form
    20,081.52/27,714.96 = 11,698.56/x
  3. Step 3: Cross multiply
    20,081.52x = 27,714.96 × 11,698.56
  4. Step 4: Simplify right side
    20,081.52x = 324,225,122.46
  5. Step 5: Solve for x
    x = 324,225,122.46/20,081.52
  6. Step 6: Final answer
    x = 16,145.45

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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.