Home / 20,064.42-30,102.57-6,918.12

Finding the Fourth Proportional to 20,064.42, 30,102.57 and 6,918.12

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Solution

The fourth proportional to 20,064.42, 30,102.57 and 6,918.12 is: 10,379.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.42 : 30,102.57 = 6,918.12 : x
  2. Step 2: Convert to fraction form
    20,064.42/30,102.57 = 6,918.12/x
  3. Step 3: Cross multiply
    20,064.42x = 30,102.57 × 6,918.12
  4. Step 4: Simplify right side
    20,064.42x = 208,253,191.57
  5. Step 5: Solve for x
    x = 208,253,191.57/20,064.42
  6. Step 6: Final answer
    x = 10,379.23

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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.