Home / 25,736.96-38,517.78-21,581.66

Finding the Fourth Proportional to 25,736.96, 38,517.78 and 21,581.66

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Solution

The fourth proportional to 25,736.96, 38,517.78 and 21,581.66 is: 32,298.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,736.96 : 38,517.78 = 21,581.66 : x
  2. Step 2: Convert to fraction form
    25,736.96/38,517.78 = 21,581.66/x
  3. Step 3: Cross multiply
    25,736.96x = 38,517.78 × 21,581.66
  4. Step 4: Simplify right side
    25,736.96x = 831,277,631.91
  5. Step 5: Solve for x
    x = 831,277,631.91/25,736.96
  6. Step 6: Final answer
    x = 32,298.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.