Home / 21,191.57-29,244.53-11,760.29

Finding the Fourth Proportional to 21,191.57, 29,244.53 and 11,760.29

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Solution

The fourth proportional to 21,191.57, 29,244.53 and 11,760.29 is: 16,229.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.57 : 29,244.53 = 11,760.29 : x
  2. Step 2: Convert to fraction form
    21,191.57/29,244.53 = 11,760.29/x
  3. Step 3: Cross multiply
    21,191.57x = 29,244.53 × 11,760.29
  4. Step 4: Simplify right side
    21,191.57x = 343,924,036.89
  5. Step 5: Solve for x
    x = 343,924,036.89/21,191.57
  6. Step 6: Final answer
    x = 16,229.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.