Home / 28,380.12-42,569.94-9,662.07

Finding the Fourth Proportional to 28,380.12, 42,569.94 and 9,662.07

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Solution

The fourth proportional to 28,380.12, 42,569.94 and 9,662.07 is: 14,493.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.12 : 42,569.94 = 9,662.07 : x
  2. Step 2: Convert to fraction form
    28,380.12/42,569.94 = 9,662.07/x
  3. Step 3: Cross multiply
    28,380.12x = 42,569.94 × 9,662.07
  4. Step 4: Simplify right side
    28,380.12x = 411,313,740.18
  5. Step 5: Solve for x
    x = 411,313,740.18/28,380.12
  6. Step 6: Final answer
    x = 14,493.02

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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.