Home / 21,956.26-32,934.88-7,917.42

Finding the Fourth Proportional to 21,956.26, 32,934.88 and 7,917.42

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Solution

The fourth proportional to 21,956.26, 32,934.88 and 7,917.42 is: 11,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.26 : 32,934.88 = 7,917.42 : x
  2. Step 2: Convert to fraction form
    21,956.26/32,934.88 = 7,917.42/x
  3. Step 3: Cross multiply
    21,956.26x = 32,934.88 × 7,917.42
  4. Step 4: Simplify right side
    21,956.26x = 260,759,277.61
  5. Step 5: Solve for x
    x = 260,759,277.61/21,956.26
  6. Step 6: Final answer
    x = 11,876.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.