Home / 20,160.37-30,241.23-7,012.85

Finding the Fourth Proportional to 20,160.37, 30,241.23 and 7,012.85

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Solution

The fourth proportional to 20,160.37, 30,241.23 and 7,012.85 is: 10,519.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,160.37 : 30,241.23 = 7,012.85 : x
  2. Step 2: Convert to fraction form
    20,160.37/30,241.23 = 7,012.85/x
  3. Step 3: Cross multiply
    20,160.37x = 30,241.23 × 7,012.85
  4. Step 4: Simplify right side
    20,160.37x = 212,077,209.81
  5. Step 5: Solve for x
    x = 212,077,209.81/20,160.37
  6. Step 6: Final answer
    x = 10,519.51

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Half scale
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Double scale
Find fourth proportional to 20,161.37, 30,242.73 and 7,013.85
Similar ratio
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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.