Home / 22,221.75-30,664.76-12,148.32

Finding the Fourth Proportional to 22,221.75, 30,664.76 and 12,148.32

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Solution

The fourth proportional to 22,221.75, 30,664.76 and 12,148.32 is: 16,763.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,221.75 : 30,664.76 = 12,148.32 : x
  2. Step 2: Convert to fraction form
    22,221.75/30,664.76 = 12,148.32/x
  3. Step 3: Cross multiply
    22,221.75x = 30,664.76 × 12,148.32
  4. Step 4: Simplify right side
    22,221.75x = 372,525,103.14
  5. Step 5: Solve for x
    x = 372,525,103.14/22,221.75
  6. Step 6: Final answer
    x = 16,763.99

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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.