Home / 20,056.38-30,112.18-10,202.34

Finding the Fourth Proportional to 20,056.38, 30,112.18 and 10,202.34

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Solution

The fourth proportional to 20,056.38, 30,112.18 and 10,202.34 is: 15,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,056.38 : 30,112.18 = 10,202.34 : x
  2. Step 2: Convert to fraction form
    20,056.38/30,112.18 = 10,202.34/x
  3. Step 3: Cross multiply
    20,056.38x = 30,112.18 × 10,202.34
  4. Step 4: Simplify right side
    20,056.38x = 307,214,698.50
  5. Step 5: Solve for x
    x = 307,214,698.50/20,056.38
  6. Step 6: Final answer
    x = 15,317.55

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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.