Home / 21,982.82-32,967.27-7,188.32

Finding the Fourth Proportional to 21,982.82, 32,967.27 and 7,188.32

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Solution

The fourth proportional to 21,982.82, 32,967.27 and 7,188.32 is: 10,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.82 : 32,967.27 = 7,188.32 : x
  2. Step 2: Convert to fraction form
    21,982.82/32,967.27 = 7,188.32/x
  3. Step 3: Cross multiply
    21,982.82x = 32,967.27 × 7,188.32
  4. Step 4: Simplify right side
    21,982.82x = 236,979,286.29
  5. Step 5: Solve for x
    x = 236,979,286.29/21,982.82
  6. Step 6: Final answer
    x = 10,780.20

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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.