Home / 20,959.26-31,419.45-11,090.22

Finding the Fourth Proportional to 20,959.26, 31,419.45 and 11,090.22

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Solution

The fourth proportional to 20,959.26, 31,419.45 and 11,090.22 is: 16,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,959.26 : 31,419.45 = 11,090.22 : x
  2. Step 2: Convert to fraction form
    20,959.26/31,419.45 = 11,090.22/x
  3. Step 3: Cross multiply
    20,959.26x = 31,419.45 × 11,090.22
  4. Step 4: Simplify right side
    20,959.26x = 348,448,612.78
  5. Step 5: Solve for x
    x = 348,448,612.78/20,959.26
  6. Step 6: Final answer
    x = 16,625.04

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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.