Home / 28,665-42,986.46-11,132.52

Finding the Fourth Proportional to 28,665, 42,986.46 and 11,132.52

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Solution

The fourth proportional to 28,665, 42,986.46 and 11,132.52 is: 16,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,665 : 42,986.46 = 11,132.52 : x
  2. Step 2: Convert to fraction form
    28,665/42,986.46 = 11,132.52/x
  3. Step 3: Cross multiply
    28,665x = 42,986.46 × 11,132.52
  4. Step 4: Simplify right side
    28,665x = 478,547,625.68
  5. Step 5: Solve for x
    x = 478,547,625.68/28,665
  6. Step 6: Final answer
    x = 16,694.49

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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.