Home / 21,008.09-31,517.03-6,967.09

Finding the Fourth Proportional to 21,008.09, 31,517.03 and 6,967.09

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Solution

The fourth proportional to 21,008.09, 31,517.03 and 6,967.09 is: 10,452.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008.09 : 31,517.03 = 6,967.09 : x
  2. Step 2: Convert to fraction form
    21,008.09/31,517.03 = 6,967.09/x
  3. Step 3: Cross multiply
    21,008.09x = 31,517.03 × 6,967.09
  4. Step 4: Simplify right side
    21,008.09x = 219,581,984.54
  5. Step 5: Solve for x
    x = 219,581,984.54/21,008.09
  6. Step 6: Final answer
    x = 10,452.26

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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.