Home / 20,337.05-30,506.52-7,190.75

Finding the Fourth Proportional to 20,337.05, 30,506.52 and 7,190.75

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Solution

The fourth proportional to 20,337.05, 30,506.52 and 7,190.75 is: 10,786.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.05 : 30,506.52 = 7,190.75 : x
  2. Step 2: Convert to fraction form
    20,337.05/30,506.52 = 7,190.75/x
  3. Step 3: Cross multiply
    20,337.05x = 30,506.52 × 7,190.75
  4. Step 4: Simplify right side
    20,337.05x = 219,364,758.69
  5. Step 5: Solve for x
    x = 219,364,758.69/20,337.05
  6. Step 6: Final answer
    x = 10,786.46

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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.