Home / 20,265.15-30,399.48-5,474.01

Finding the Fourth Proportional to 20,265.15, 30,399.48 and 5,474.01

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Solution

The fourth proportional to 20,265.15, 30,399.48 and 5,474.01 is: 8,211.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.15 : 30,399.48 = 5,474.01 : x
  2. Step 2: Convert to fraction form
    20,265.15/30,399.48 = 5,474.01/x
  3. Step 3: Cross multiply
    20,265.15x = 30,399.48 × 5,474.01
  4. Step 4: Simplify right side
    20,265.15x = 166,407,057.51
  5. Step 5: Solve for x
    x = 166,407,057.51/20,265.15
  6. Step 6: Final answer
    x = 8,211.49

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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.