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Finding the Fourth Proportional to 28,163.60, 42,250.41 and 9,449.71

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Solution

The fourth proportional to 28,163.60, 42,250.41 and 9,449.71 is: 14,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.60 : 42,250.41 = 9,449.71 : x
  2. Step 2: Convert to fraction form
    28,163.60/42,250.41 = 9,449.71/x
  3. Step 3: Cross multiply
    28,163.60x = 42,250.41 × 9,449.71
  4. Step 4: Simplify right side
    28,163.60x = 399,254,253.91
  5. Step 5: Solve for x
    x = 399,254,253.91/28,163.60
  6. Step 6: Final answer
    x = 14,176.25

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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.