Home / 28,393.20-42,562.68-10,619.04

Finding the Fourth Proportional to 28,393.20, 42,562.68 and 10,619.04

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Solution

The fourth proportional to 28,393.20, 42,562.68 and 10,619.04 is: 15,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,393.20 : 42,562.68 = 10,619.04 : x
  2. Step 2: Convert to fraction form
    28,393.20/42,562.68 = 10,619.04/x
  3. Step 3: Cross multiply
    28,393.20x = 42,562.68 × 10,619.04
  4. Step 4: Simplify right side
    28,393.20x = 451,974,641.82
  5. Step 5: Solve for x
    x = 451,974,641.82/28,393.20
  6. Step 6: Final answer
    x = 15,918.41

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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.