Home / 20,045.80-30,028.38-11,267.56

Finding the Fourth Proportional to 20,045.80, 30,028.38 and 11,267.56

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Solution

The fourth proportional to 20,045.80, 30,028.38 and 11,267.56 is: 16,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.80 : 30,028.38 = 11,267.56 : x
  2. Step 2: Convert to fraction form
    20,045.80/30,028.38 = 11,267.56/x
  3. Step 3: Cross multiply
    20,045.80x = 30,028.38 × 11,267.56
  4. Step 4: Simplify right side
    20,045.80x = 338,346,573.35
  5. Step 5: Solve for x
    x = 338,346,573.35/20,045.80
  6. Step 6: Final answer
    x = 16,878.68

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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.