Home / 15,121.60-22,679.38-14,371.39

Finding the Fourth Proportional to 15,121.60, 22,679.38 and 14,371.39

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Solution

The fourth proportional to 15,121.60, 22,679.38 and 14,371.39 is: 21,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121.60 : 22,679.38 = 14,371.39 : x
  2. Step 2: Convert to fraction form
    15,121.60/22,679.38 = 14,371.39/x
  3. Step 3: Cross multiply
    15,121.60x = 22,679.38 × 14,371.39
  4. Step 4: Simplify right side
    15,121.60x = 325,934,180.41
  5. Step 5: Solve for x
    x = 325,934,180.41/15,121.60
  6. Step 6: Final answer
    x = 21,554.21

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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.