Home / 30,067.28-45,061.87-12,277.11

Finding the Fourth Proportional to 30,067.28, 45,061.87 and 12,277.11

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Solution

The fourth proportional to 30,067.28, 45,061.87 and 12,277.11 is: 18,399.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.28 : 45,061.87 = 12,277.11 : x
  2. Step 2: Convert to fraction form
    30,067.28/45,061.87 = 12,277.11/x
  3. Step 3: Cross multiply
    30,067.28x = 45,061.87 × 12,277.11
  4. Step 4: Simplify right side
    30,067.28x = 553,229,534.80
  5. Step 5: Solve for x
    x = 553,229,534.80/30,067.28
  6. Step 6: Final answer
    x = 18,399.72

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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.