Home / 22,691.49-31,310.32-14,190.90

Finding the Fourth Proportional to 22,691.49, 31,310.32 and 14,190.90

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Solution

The fourth proportional to 22,691.49, 31,310.32 and 14,190.90 is: 19,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.49 : 31,310.32 = 14,190.90 : x
  2. Step 2: Convert to fraction form
    22,691.49/31,310.32 = 14,190.90/x
  3. Step 3: Cross multiply
    22,691.49x = 31,310.32 × 14,190.90
  4. Step 4: Simplify right side
    22,691.49x = 444,321,533.72
  5. Step 5: Solve for x
    x = 444,321,533.72/22,691.49
  6. Step 6: Final answer
    x = 19,580.97

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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.