Home / 28,288.20-42,436.88-9,569.37

Finding the Fourth Proportional to 28,288.20, 42,436.88 and 9,569.37

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Solution

The fourth proportional to 28,288.20, 42,436.88 and 9,569.37 is: 14,355.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.20 : 42,436.88 = 9,569.37 : x
  2. Step 2: Convert to fraction form
    28,288.20/42,436.88 = 9,569.37/x
  3. Step 3: Cross multiply
    28,288.20x = 42,436.88 × 9,569.37
  4. Step 4: Simplify right side
    28,288.20x = 406,094,230.29
  5. Step 5: Solve for x
    x = 406,094,230.29/28,288.20
  6. Step 6: Final answer
    x = 14,355.61

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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.