Home / 20,235.92-30,354.15-7,756.58

Finding the Fourth Proportional to 20,235.92, 30,354.15 and 7,756.58

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Solution

The fourth proportional to 20,235.92, 30,354.15 and 7,756.58 is: 11,634.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235.92 : 30,354.15 = 7,756.58 : x
  2. Step 2: Convert to fraction form
    20,235.92/30,354.15 = 7,756.58/x
  3. Step 3: Cross multiply
    20,235.92x = 30,354.15 × 7,756.58
  4. Step 4: Simplify right side
    20,235.92x = 235,444,241.04
  5. Step 5: Solve for x
    x = 235,444,241.04/20,235.92
  6. Step 6: Final answer
    x = 11,634.97

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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.