Home / 21,947.60-32,902.20-19,614.80

Finding the Fourth Proportional to 21,947.60, 32,902.20 and 19,614.80

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Solution

The fourth proportional to 21,947.60, 32,902.20 and 19,614.80 is: 29,405.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,947.60 : 32,902.20 = 19,614.80 : x
  2. Step 2: Convert to fraction form
    21,947.60/32,902.20 = 19,614.80/x
  3. Step 3: Cross multiply
    21,947.60x = 32,902.20 × 19,614.80
  4. Step 4: Simplify right side
    21,947.60x = 645,370,072.56
  5. Step 5: Solve for x
    x = 645,370,072.56/21,947.60
  6. Step 6: Final answer
    x = 29,405.04

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1.5x scale

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.