Home / 28,233.20-38,964.20-15,662

Finding the Fourth Proportional to 28,233.20, 38,964.20 and 15,662

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Solution

The fourth proportional to 28,233.20, 38,964.20 and 15,662 is: 21,614.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.20 : 38,964.20 = 15,662 : x
  2. Step 2: Convert to fraction form
    28,233.20/38,964.20 = 15,662/x
  3. Step 3: Cross multiply
    28,233.20x = 38,964.20 × 15,662
  4. Step 4: Simplify right side
    28,233.20x = 610,257,300.40
  5. Step 5: Solve for x
    x = 610,257,300.40/28,233.20
  6. Step 6: Final answer
    x = 21,614.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.