Home / 21,515.50-32,273-15,164.29

Finding the Fourth Proportional to 21,515.50, 32,273 and 15,164.29

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Solution

The fourth proportional to 21,515.50, 32,273 and 15,164.29 is: 22,746.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515.50 : 32,273 = 15,164.29 : x
  2. Step 2: Convert to fraction form
    21,515.50/32,273 = 15,164.29/x
  3. Step 3: Cross multiply
    21,515.50x = 32,273 × 15,164.29
  4. Step 4: Simplify right side
    21,515.50x = 489,397,131.17
  5. Step 5: Solve for x
    x = 489,397,131.17/21,515.50
  6. Step 6: Final answer
    x = 22,746.26

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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.