Home / 20,237.11-30,355.47-11,352.42

Finding the Fourth Proportional to 20,237.11, 30,355.47 and 11,352.42

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Solution

The fourth proportional to 20,237.11, 30,355.47 and 11,352.42 is: 17,028.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.11 : 30,355.47 = 11,352.42 : x
  2. Step 2: Convert to fraction form
    20,237.11/30,355.47 = 11,352.42/x
  3. Step 3: Cross multiply
    20,237.11x = 30,355.47 × 11,352.42
  4. Step 4: Simplify right side
    20,237.11x = 344,608,044.74
  5. Step 5: Solve for x
    x = 344,608,044.74/20,237.11
  6. Step 6: Final answer
    x = 17,028.52

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1.5x scale

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.