Home / 20,443.80-28,330.85-20,050.14

Finding the Fourth Proportional to 20,443.80, 28,330.85 and 20,050.14

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Solution

The fourth proportional to 20,443.80, 28,330.85 and 20,050.14 is: 27,785.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,443.80 : 28,330.85 = 20,050.14 : x
  2. Step 2: Convert to fraction form
    20,443.80/28,330.85 = 20,050.14/x
  3. Step 3: Cross multiply
    20,443.80x = 28,330.85 × 20,050.14
  4. Step 4: Simplify right side
    20,443.80x = 568,037,408.57
  5. Step 5: Solve for x
    x = 568,037,408.57/20,443.80
  6. Step 6: Final answer
    x = 27,785.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.