Home / 21,956.27-30,292.08-12,394.96

Finding the Fourth Proportional to 21,956.27, 30,292.08 and 12,394.96

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Solution

The fourth proportional to 21,956.27, 30,292.08 and 12,394.96 is: 17,100.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.27 : 30,292.08 = 12,394.96 : x
  2. Step 2: Convert to fraction form
    21,956.27/30,292.08 = 12,394.96/x
  3. Step 3: Cross multiply
    21,956.27x = 30,292.08 × 12,394.96
  4. Step 4: Simplify right side
    21,956.27x = 375,468,997.71
  5. Step 5: Solve for x
    x = 375,468,997.71/21,956.27
  6. Step 6: Final answer
    x = 17,100.77

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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.