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Finding the Fourth Proportional to 28,029.68, 42,052.44 and 8,308.16

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Solution

The fourth proportional to 28,029.68, 42,052.44 and 8,308.16 is: 12,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.68 : 42,052.44 = 8,308.16 : x
  2. Step 2: Convert to fraction form
    28,029.68/42,052.44 = 8,308.16/x
  3. Step 3: Cross multiply
    28,029.68x = 42,052.44 × 8,308.16
  4. Step 4: Simplify right side
    28,029.68x = 349,378,399.91
  5. Step 5: Solve for x
    x = 349,378,399.91/28,029.68
  6. Step 6: Final answer
    x = 12,464.59

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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.