Home / 28,997.40-43,496.10-8,221.08

Finding the Fourth Proportional to 28,997.40, 43,496.10 and 8,221.08

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Solution

The fourth proportional to 28,997.40, 43,496.10 and 8,221.08 is: 12,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.40 : 43,496.10 = 8,221.08 : x
  2. Step 2: Convert to fraction form
    28,997.40/43,496.10 = 8,221.08/x
  3. Step 3: Cross multiply
    28,997.40x = 43,496.10 × 8,221.08
  4. Step 4: Simplify right side
    28,997.40x = 357,584,917.79
  5. Step 5: Solve for x
    x = 357,584,917.79/28,997.40
  6. Step 6: Final answer
    x = 12,331.62

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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.