Home / 21,968.28-33,102.33-18,158.04

Finding the Fourth Proportional to 21,968.28, 33,102.33 and 18,158.04

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Solution

The fourth proportional to 21,968.28, 33,102.33 and 18,158.04 is: 27,360.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.28 : 33,102.33 = 18,158.04 : x
  2. Step 2: Convert to fraction form
    21,968.28/33,102.33 = 18,158.04/x
  3. Step 3: Cross multiply
    21,968.28x = 33,102.33 × 18,158.04
  4. Step 4: Simplify right side
    21,968.28x = 601,073,432.23
  5. Step 5: Solve for x
    x = 601,073,432.23/21,968.28
  6. Step 6: Final answer
    x = 27,360.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.