Home / 21,223.56-31,847.29-19,550.51

Finding the Fourth Proportional to 21,223.56, 31,847.29 and 19,550.51

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Solution

The fourth proportional to 21,223.56, 31,847.29 and 19,550.51 is: 29,336.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.56 : 31,847.29 = 19,550.51 : x
  2. Step 2: Convert to fraction form
    21,223.56/31,847.29 = 19,550.51/x
  3. Step 3: Cross multiply
    21,223.56x = 31,847.29 × 19,550.51
  4. Step 4: Simplify right side
    21,223.56x = 622,630,553.51
  5. Step 5: Solve for x
    x = 622,630,553.51/21,223.56
  6. Step 6: Final answer
    x = 29,336.76

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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.