Home / 22,464.96-31,003.20-15,388.80

Finding the Fourth Proportional to 22,464.96, 31,003.20 and 15,388.80

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Solution

The fourth proportional to 22,464.96, 31,003.20 and 15,388.80 is: 21,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,464.96 : 31,003.20 = 15,388.80 : x
  2. Step 2: Convert to fraction form
    22,464.96/31,003.20 = 15,388.80/x
  3. Step 3: Cross multiply
    22,464.96x = 31,003.20 × 15,388.80
  4. Step 4: Simplify right side
    22,464.96x = 477,102,044.16
  5. Step 5: Solve for x
    x = 477,102,044.16/22,464.96
  6. Step 6: Final answer
    x = 21,237.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.