Home / 22,192.15-30,621.11-12,631.48

Finding the Fourth Proportional to 22,192.15, 30,621.11 and 12,631.48

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Solution

The fourth proportional to 22,192.15, 30,621.11 and 12,631.48 is: 17,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,192.15 : 30,621.11 = 12,631.48 : x
  2. Step 2: Convert to fraction form
    22,192.15/30,621.11 = 12,631.48/x
  3. Step 3: Cross multiply
    22,192.15x = 30,621.11 × 12,631.48
  4. Step 4: Simplify right side
    22,192.15x = 386,789,905.41
  5. Step 5: Solve for x
    x = 386,789,905.41/22,192.15
  6. Step 6: Final answer
    x = 17,429.13

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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.