Home / 20,211.87-30,331.68-7,064.25

Finding the Fourth Proportional to 20,211.87, 30,331.68 and 7,064.25

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Solution

The fourth proportional to 20,211.87, 30,331.68 and 7,064.25 is: 10,601.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,211.87 : 30,331.68 = 7,064.25 : x
  2. Step 2: Convert to fraction form
    20,211.87/30,331.68 = 7,064.25/x
  3. Step 3: Cross multiply
    20,211.87x = 30,331.68 × 7,064.25
  4. Step 4: Simplify right side
    20,211.87x = 214,270,535.12
  5. Step 5: Solve for x
    x = 214,270,535.12/20,211.87
  6. Step 6: Final answer
    x = 10,601.22

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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.