Home / 21,838.38-32,757.56-5,422.38

Finding the Fourth Proportional to 21,838.38, 32,757.56 and 5,422.38

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Solution

The fourth proportional to 21,838.38, 32,757.56 and 5,422.38 is: 8,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838.38 : 32,757.56 = 5,422.38 : x
  2. Step 2: Convert to fraction form
    21,838.38/32,757.56 = 5,422.38/x
  3. Step 3: Cross multiply
    21,838.38x = 32,757.56 × 5,422.38
  4. Step 4: Simplify right side
    21,838.38x = 177,623,938.19
  5. Step 5: Solve for x
    x = 177,623,938.19/21,838.38
  6. Step 6: Final answer
    x = 8,133.57

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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.