Home / 19,130.82-28,697.88-5,279.82

Finding the Fourth Proportional to 19,130.82, 28,697.88 and 5,279.82

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Solution

The fourth proportional to 19,130.82, 28,697.88 and 5,279.82 is: 7,920.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.82 : 28,697.88 = 5,279.82 : x
  2. Step 2: Convert to fraction form
    19,130.82/28,697.88 = 5,279.82/x
  3. Step 3: Cross multiply
    19,130.82x = 28,697.88 × 5,279.82
  4. Step 4: Simplify right side
    19,130.82x = 151,519,640.78
  5. Step 5: Solve for x
    x = 151,519,640.78/19,130.82
  6. Step 6: Final answer
    x = 7,920.19

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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.