Home / 18,932.24-28,395.12-5,078

Finding the Fourth Proportional to 18,932.24, 28,395.12 and 5,078

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Solution

The fourth proportional to 18,932.24, 28,395.12 and 5,078 is: 7,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.24 : 28,395.12 = 5,078 : x
  2. Step 2: Convert to fraction form
    18,932.24/28,395.12 = 5,078/x
  3. Step 3: Cross multiply
    18,932.24x = 28,395.12 × 5,078
  4. Step 4: Simplify right side
    18,932.24x = 144,190,419.36
  5. Step 5: Solve for x
    x = 144,190,419.36/18,932.24
  6. Step 6: Final answer
    x = 7,616.13

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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.