Home / 31,622.28-43,643.33-18,876

Finding the Fourth Proportional to 31,622.28, 43,643.33 and 18,876

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Solution

The fourth proportional to 31,622.28, 43,643.33 and 18,876 is: 26,051.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,622.28 : 43,643.33 = 18,876 : x
  2. Step 2: Convert to fraction form
    31,622.28/43,643.33 = 18,876/x
  3. Step 3: Cross multiply
    31,622.28x = 43,643.33 × 18,876
  4. Step 4: Simplify right side
    31,622.28x = 823,811,497.08
  5. Step 5: Solve for x
    x = 823,811,497.08/31,622.28
  6. Step 6: Final answer
    x = 26,051.62

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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.