Home / 20,399.36-30,598.92-5,610.32

Finding the Fourth Proportional to 20,399.36, 30,598.92 and 5,610.32

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Solution

The fourth proportional to 20,399.36, 30,598.92 and 5,610.32 is: 8,415.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.36 : 30,598.92 = 5,610.32 : x
  2. Step 2: Convert to fraction form
    20,399.36/30,598.92 = 5,610.32/x
  3. Step 3: Cross multiply
    20,399.36x = 30,598.92 × 5,610.32
  4. Step 4: Simplify right side
    20,399.36x = 171,669,732.85
  5. Step 5: Solve for x
    x = 171,669,732.85/20,399.36
  6. Step 6: Final answer
    x = 8,415.45

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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.