Home / 57,711.28-86,578.14-22,170

Finding the Fourth Proportional to 57,711.28, 86,578.14 and 22,170

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Solution

The fourth proportional to 57,711.28, 86,578.14 and 22,170 is: 33,259.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,711.28 : 86,578.14 = 22,170 : x
  2. Step 2: Convert to fraction form
    57,711.28/86,578.14 = 22,170/x
  3. Step 3: Cross multiply
    57,711.28x = 86,578.14 × 22,170
  4. Step 4: Simplify right side
    57,711.28x = 1,919,437,363.80
  5. Step 5: Solve for x
    x = 1,919,437,363.80/57,711.28
  6. Step 6: Final answer
    x = 33,259.31

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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.