Home / 22,722.35-31,356.60-12,650.54

Finding the Fourth Proportional to 22,722.35, 31,356.60 and 12,650.54

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Solution

The fourth proportional to 22,722.35, 31,356.60 and 12,650.54 is: 17,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,722.35 : 31,356.60 = 12,650.54 : x
  2. Step 2: Convert to fraction form
    22,722.35/31,356.60 = 12,650.54/x
  3. Step 3: Cross multiply
    22,722.35x = 31,356.60 × 12,650.54
  4. Step 4: Simplify right side
    22,722.35x = 396,677,922.56
  5. Step 5: Solve for x
    x = 396,677,922.56/22,722.35
  6. Step 6: Final answer
    x = 17,457.61

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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.