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Finding the Fourth Proportional to 28,998.94, 43,503.87 and 9,272.20

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Solution

The fourth proportional to 28,998.94, 43,503.87 and 9,272.20 is: 13,910.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.94 : 43,503.87 = 9,272.20 : x
  2. Step 2: Convert to fraction form
    28,998.94/43,503.87 = 9,272.20/x
  3. Step 3: Cross multiply
    28,998.94x = 43,503.87 × 9,272.20
  4. Step 4: Simplify right side
    28,998.94x = 403,376,365.89
  5. Step 5: Solve for x
    x = 403,376,365.89/28,998.94
  6. Step 6: Final answer
    x = 13,910.04

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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.