Home / 21,350.19-29,463.27-11,918.75

Finding the Fourth Proportional to 21,350.19, 29,463.27 and 11,918.75

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Solution

The fourth proportional to 21,350.19, 29,463.27 and 11,918.75 is: 16,447.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,350.19 : 29,463.27 = 11,918.75 : x
  2. Step 2: Convert to fraction form
    21,350.19/29,463.27 = 11,918.75/x
  3. Step 3: Cross multiply
    21,350.19x = 29,463.27 × 11,918.75
  4. Step 4: Simplify right side
    21,350.19x = 351,165,422.97
  5. Step 5: Solve for x
    x = 351,165,422.97/21,350.19
  6. Step 6: Final answer
    x = 16,447.88

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Double scale
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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.