Home / 18,851.39-28,277.07-4,811.42

Finding the Fourth Proportional to 18,851.39, 28,277.07 and 4,811.42

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Solution

The fourth proportional to 18,851.39, 28,277.07 and 4,811.42 is: 7,217.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,851.39 : 28,277.07 = 4,811.42 : x
  2. Step 2: Convert to fraction form
    18,851.39/28,277.07 = 4,811.42/x
  3. Step 3: Cross multiply
    18,851.39x = 28,277.07 × 4,811.42
  4. Step 4: Simplify right side
    18,851.39x = 136,052,893.32
  5. Step 5: Solve for x
    x = 136,052,893.32/18,851.39
  6. Step 6: Final answer
    x = 7,217.13

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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.