Home / 21,231.24-31,846.81-5,648.86

Finding the Fourth Proportional to 21,231.24, 31,846.81 and 5,648.86

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Solution

The fourth proportional to 21,231.24, 31,846.81 and 5,648.86 is: 8,473.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231.24 : 31,846.81 = 5,648.86 : x
  2. Step 2: Convert to fraction form
    21,231.24/31,846.81 = 5,648.86/x
  3. Step 3: Cross multiply
    21,231.24x = 31,846.81 × 5,648.86
  4. Step 4: Simplify right side
    21,231.24x = 179,898,171.14
  5. Step 5: Solve for x
    x = 179,898,171.14/21,231.24
  6. Step 6: Final answer
    x = 8,473.28

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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.