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Finding the Fourth Proportional to 28,227.21, 42,360.26 and 9,759.21

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Solution

The fourth proportional to 28,227.21, 42,360.26 and 9,759.21 is: 14,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,227.21 : 42,360.26 = 9,759.21 : x
  2. Step 2: Convert to fraction form
    28,227.21/42,360.26 = 9,759.21/x
  3. Step 3: Cross multiply
    28,227.21x = 42,360.26 × 9,759.21
  4. Step 4: Simplify right side
    28,227.21x = 413,402,624.20
  5. Step 5: Solve for x
    x = 413,402,624.20/28,227.21
  6. Step 6: Final answer
    x = 14,645.54

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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.