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Finding the Fourth Proportional to 18,650.28, 28,014.30 and 15,734.28

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Solution

The fourth proportional to 18,650.28, 28,014.30 and 15,734.28 is: 23,634.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.28 : 28,014.30 = 15,734.28 : x
  2. Step 2: Convert to fraction form
    18,650.28/28,014.30 = 15,734.28/x
  3. Step 3: Cross multiply
    18,650.28x = 28,014.30 × 15,734.28
  4. Step 4: Simplify right side
    18,650.28x = 440,784,840.20
  5. Step 5: Solve for x
    x = 440,784,840.20/18,650.28
  6. Step 6: Final answer
    x = 23,634.22

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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.