Home / 20,304.99-28,022.45-11,352.87

Finding the Fourth Proportional to 20,304.99, 28,022.45 and 11,352.87

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Solution

The fourth proportional to 20,304.99, 28,022.45 and 11,352.87 is: 15,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.99 : 28,022.45 = 11,352.87 : x
  2. Step 2: Convert to fraction form
    20,304.99/28,022.45 = 11,352.87/x
  3. Step 3: Cross multiply
    20,304.99x = 28,022.45 × 11,352.87
  4. Step 4: Simplify right side
    20,304.99x = 318,135,175.17
  5. Step 5: Solve for x
    x = 318,135,175.17/20,304.99
  6. Step 6: Final answer
    x = 15,667.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.