Home / 28,689.40-43,035.32-8,968.33

Finding the Fourth Proportional to 28,689.40, 43,035.32 and 8,968.33

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Solution

The fourth proportional to 28,689.40, 43,035.32 and 8,968.33 is: 13,452.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.40 : 43,035.32 = 8,968.33 : x
  2. Step 2: Convert to fraction form
    28,689.40/43,035.32 = 8,968.33/x
  3. Step 3: Cross multiply
    28,689.40x = 43,035.32 × 8,968.33
  4. Step 4: Simplify right side
    28,689.40x = 385,954,951.42
  5. Step 5: Solve for x
    x = 385,954,951.42/28,689.40
  6. Step 6: Final answer
    x = 13,452.88

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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.