Home / 34,759.60-47,974.89-20,620.24

Finding the Fourth Proportional to 34,759.60, 47,974.89 and 20,620.24

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Solution

The fourth proportional to 34,759.60, 47,974.89 and 20,620.24 is: 28,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,759.60 : 47,974.89 = 20,620.24 : x
  2. Step 2: Convert to fraction form
    34,759.60/47,974.89 = 20,620.24/x
  3. Step 3: Cross multiply
    34,759.60x = 47,974.89 × 20,620.24
  4. Step 4: Simplify right side
    34,759.60x = 989,253,745.77
  5. Step 5: Solve for x
    x = 989,253,745.77/34,759.60
  6. Step 6: Final answer
    x = 28,459.87

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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.