Home / 28,918.84-43,374.30-9,196.60

Finding the Fourth Proportional to 28,918.84, 43,374.30 and 9,196.60

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Solution

The fourth proportional to 28,918.84, 43,374.30 and 9,196.60 is: 13,793.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.84 : 43,374.30 = 9,196.60 : x
  2. Step 2: Convert to fraction form
    28,918.84/43,374.30 = 9,196.60/x
  3. Step 3: Cross multiply
    28,918.84x = 43,374.30 × 9,196.60
  4. Step 4: Simplify right side
    28,918.84x = 398,896,087.38
  5. Step 5: Solve for x
    x = 398,896,087.38/28,918.84
  6. Step 6: Final answer
    x = 13,793.64

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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.