Home / 20,212.11-30,314.55-7,068.25

Finding the Fourth Proportional to 20,212.11, 30,314.55 and 7,068.25

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Solution

The fourth proportional to 20,212.11, 30,314.55 and 7,068.25 is: 10,601.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.11 : 30,314.55 = 7,068.25 : x
  2. Step 2: Convert to fraction form
    20,212.11/30,314.55 = 7,068.25/x
  3. Step 3: Cross multiply
    20,212.11x = 30,314.55 × 7,068.25
  4. Step 4: Simplify right side
    20,212.11x = 214,270,648.79
  5. Step 5: Solve for x
    x = 214,270,648.79/20,212.11
  6. Step 6: Final answer
    x = 10,601.11

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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.