Home / 21,016.26-31,523.40-7,867.62

Finding the Fourth Proportional to 21,016.26, 31,523.40 and 7,867.62

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Solution

The fourth proportional to 21,016.26, 31,523.40 and 7,867.62 is: 11,801.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.26 : 31,523.40 = 7,867.62 : x
  2. Step 2: Convert to fraction form
    21,016.26/31,523.40 = 7,867.62/x
  3. Step 3: Cross multiply
    21,016.26x = 31,523.40 × 7,867.62
  4. Step 4: Simplify right side
    21,016.26x = 248,014,132.31
  5. Step 5: Solve for x
    x = 248,014,132.31/21,016.26
  6. Step 6: Final answer
    x = 11,801.06

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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.