Home / 20,789.36-31,185.05-5,796.45

Finding the Fourth Proportional to 20,789.36, 31,185.05 and 5,796.45

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Solution

The fourth proportional to 20,789.36, 31,185.05 and 5,796.45 is: 8,694.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,789.36 : 31,185.05 = 5,796.45 : x
  2. Step 2: Convert to fraction form
    20,789.36/31,185.05 = 5,796.45/x
  3. Step 3: Cross multiply
    20,789.36x = 31,185.05 × 5,796.45
  4. Step 4: Simplify right side
    20,789.36x = 180,762,698.21
  5. Step 5: Solve for x
    x = 180,762,698.21/20,789.36
  6. Step 6: Final answer
    x = 8,694.96

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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.