Home / 28,998.22-43,504.80-8,221.72

Finding the Fourth Proportional to 28,998.22, 43,504.80 and 8,221.72

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Solution

The fourth proportional to 28,998.22, 43,504.80 and 8,221.72 is: 12,334.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.22 : 43,504.80 = 8,221.72 : x
  2. Step 2: Convert to fraction form
    28,998.22/43,504.80 = 8,221.72/x
  3. Step 3: Cross multiply
    28,998.22x = 43,504.80 × 8,221.72
  4. Step 4: Simplify right side
    28,998.22x = 357,684,284.26
  5. Step 5: Solve for x
    x = 357,684,284.26/28,998.22
  6. Step 6: Final answer
    x = 12,334.70

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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.