Home / 20,229.16-30,351.84-7,090.96

Finding the Fourth Proportional to 20,229.16, 30,351.84 and 7,090.96

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Solution

The fourth proportional to 20,229.16, 30,351.84 and 7,090.96 is: 10,639.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,229.16 : 30,351.84 = 7,090.96 : x
  2. Step 2: Convert to fraction form
    20,229.16/30,351.84 = 7,090.96/x
  3. Step 3: Cross multiply
    20,229.16x = 30,351.84 × 7,090.96
  4. Step 4: Simplify right side
    20,229.16x = 215,223,683.37
  5. Step 5: Solve for x
    x = 215,223,683.37/20,229.16
  6. Step 6: Final answer
    x = 10,639.28

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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.