Home / 28,997.90-43,497.25-8,221.40

Finding the Fourth Proportional to 28,997.90, 43,497.25 and 8,221.40

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Solution

The fourth proportional to 28,997.90, 43,497.25 and 8,221.40 is: 12,332.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.90 : 43,497.25 = 8,221.40 : x
  2. Step 2: Convert to fraction form
    28,997.90/43,497.25 = 8,221.40/x
  3. Step 3: Cross multiply
    28,997.90x = 43,497.25 × 8,221.40
  4. Step 4: Simplify right side
    28,997.90x = 357,608,262.47
  5. Step 5: Solve for x
    x = 357,608,262.47/28,997.90
  6. Step 6: Final answer
    x = 12,332.21

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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.