Home / 21,244.82-29,318.56-11,685.11

Finding the Fourth Proportional to 21,244.82, 29,318.56 and 11,685.11

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Solution

The fourth proportional to 21,244.82, 29,318.56 and 11,685.11 is: 16,125.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,244.82 : 29,318.56 = 11,685.11 : x
  2. Step 2: Convert to fraction form
    21,244.82/29,318.56 = 11,685.11/x
  3. Step 3: Cross multiply
    21,244.82x = 29,318.56 × 11,685.11
  4. Step 4: Simplify right side
    21,244.82x = 342,590,393.62
  5. Step 5: Solve for x
    x = 342,590,393.62/21,244.82
  6. Step 6: Final answer
    x = 16,125.84

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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.