Home / 21,982.20-32,973.60-7,952.28

Finding the Fourth Proportional to 21,982.20, 32,973.60 and 7,952.28

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Solution

The fourth proportional to 21,982.20, 32,973.60 and 7,952.28 is: 11,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,982.20 : 32,973.60 = 7,952.28 : x
  2. Step 2: Convert to fraction form
    21,982.20/32,973.60 = 7,952.28/x
  3. Step 3: Cross multiply
    21,982.20x = 32,973.60 × 7,952.28
  4. Step 4: Simplify right side
    21,982.20x = 262,215,299.81
  5. Step 5: Solve for x
    x = 262,215,299.81/21,982.20
  6. Step 6: Final answer
    x = 11,928.53

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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.