Home / 21,968.28-32,960.82-8,824.40

Finding the Fourth Proportional to 21,968.28, 32,960.82 and 8,824.40

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Solution

The fourth proportional to 21,968.28, 32,960.82 and 8,824.40 is: 13,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.28 : 32,960.82 = 8,824.40 : x
  2. Step 2: Convert to fraction form
    21,968.28/32,960.82 = 8,824.40/x
  3. Step 3: Cross multiply
    21,968.28x = 32,960.82 × 8,824.40
  4. Step 4: Simplify right side
    21,968.28x = 290,859,460.01
  5. Step 5: Solve for x
    x = 290,859,460.01/21,968.28
  6. Step 6: Final answer
    x = 13,239.97

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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.