Home / 22,203.38-30,640.32-12,131.62

Finding the Fourth Proportional to 22,203.38, 30,640.32 and 12,131.62

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Solution

The fourth proportional to 22,203.38, 30,640.32 and 12,131.62 is: 16,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.38 : 30,640.32 = 12,131.62 : x
  2. Step 2: Convert to fraction form
    22,203.38/30,640.32 = 12,131.62/x
  3. Step 3: Cross multiply
    22,203.38x = 30,640.32 × 12,131.62
  4. Step 4: Simplify right side
    22,203.38x = 371,716,718.92
  5. Step 5: Solve for x
    x = 371,716,718.92/22,203.38
  6. Step 6: Final answer
    x = 16,741.45

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Half scale
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Double scale
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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.