Home / 21,344.39-29,454.06-11,913.56

Finding the Fourth Proportional to 21,344.39, 29,454.06 and 11,913.56

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Solution

The fourth proportional to 21,344.39, 29,454.06 and 11,913.56 is: 16,440.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,344.39 : 29,454.06 = 11,913.56 : x
  2. Step 2: Convert to fraction form
    21,344.39/29,454.06 = 11,913.56/x
  3. Step 3: Cross multiply
    21,344.39x = 29,454.06 × 11,913.56
  4. Step 4: Simplify right side
    21,344.39x = 350,902,711.05
  5. Step 5: Solve for x
    x = 350,902,711.05/21,344.39
  6. Step 6: Final answer
    x = 16,440.04

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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.