Home / 28,892.40-43,334.88-9,171.18

Finding the Fourth Proportional to 28,892.40, 43,334.88 and 9,171.18

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Solution

The fourth proportional to 28,892.40, 43,334.88 and 9,171.18 is: 13,755.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.40 : 43,334.88 = 9,171.18 : x
  2. Step 2: Convert to fraction form
    28,892.40/43,334.88 = 9,171.18/x
  3. Step 3: Cross multiply
    28,892.40x = 43,334.88 × 9,171.18
  4. Step 4: Simplify right side
    28,892.40x = 397,431,984.76
  5. Step 5: Solve for x
    x = 397,431,984.76/28,892.40
  6. Step 6: Final answer
    x = 13,755.59

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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.