Home / 20,100.16-27,732-11,710.72

Finding the Fourth Proportional to 20,100.16, 27,732 and 11,710.72

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Solution

The fourth proportional to 20,100.16, 27,732 and 11,710.72 is: 16,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.16 : 27,732 = 11,710.72 : x
  2. Step 2: Convert to fraction form
    20,100.16/27,732 = 11,710.72/x
  3. Step 3: Cross multiply
    20,100.16x = 27,732 × 11,710.72
  4. Step 4: Simplify right side
    20,100.16x = 324,761,687.04
  5. Step 5: Solve for x
    x = 324,761,687.04/20,100.16
  6. Step 6: Final answer
    x = 16,157.17

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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.