Home / 19,382.04-29,072.88-8,279.28

Finding the Fourth Proportional to 19,382.04, 29,072.88 and 8,279.28

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Solution

The fourth proportional to 19,382.04, 29,072.88 and 8,279.28 is: 12,418.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,382.04 : 29,072.88 = 8,279.28 : x
  2. Step 2: Convert to fraction form
    19,382.04/29,072.88 = 8,279.28/x
  3. Step 3: Cross multiply
    19,382.04x = 29,072.88 × 8,279.28
  4. Step 4: Simplify right side
    19,382.04x = 240,702,513.93
  5. Step 5: Solve for x
    x = 240,702,513.93/19,382.04
  6. Step 6: Final answer
    x = 12,418.84

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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.