Home / 38,604.14-57,895.78-13,640.88

Finding the Fourth Proportional to 38,604.14, 57,895.78 and 13,640.88

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Solution

The fourth proportional to 38,604.14, 57,895.78 and 13,640.88 is: 20,457.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,604.14 : 57,895.78 = 13,640.88 : x
  2. Step 2: Convert to fraction form
    38,604.14/57,895.78 = 13,640.88/x
  3. Step 3: Cross multiply
    38,604.14x = 57,895.78 × 13,640.88
  4. Step 4: Simplify right side
    38,604.14x = 789,749,387.49
  5. Step 5: Solve for x
    x = 789,749,387.49/38,604.14
  6. Step 6: Final answer
    x = 20,457.63

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1.5x scale

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.