Home / 21,947.76-32,921.37-9,476.55

Finding the Fourth Proportional to 21,947.76, 32,921.37 and 9,476.55

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Solution

The fourth proportional to 21,947.76, 32,921.37 and 9,476.55 is: 14,214.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.76 : 32,921.37 = 9,476.55 : x
  2. Step 2: Convert to fraction form
    21,947.76/32,921.37 = 9,476.55/x
  3. Step 3: Cross multiply
    21,947.76x = 32,921.37 × 9,476.55
  4. Step 4: Simplify right side
    21,947.76x = 311,981,008.87
  5. Step 5: Solve for x
    x = 311,981,008.87/21,947.76
  6. Step 6: Final answer
    x = 14,214.71

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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.