Home / 25,049.66-34,568.71-13,720.21

Finding the Fourth Proportional to 25,049.66, 34,568.71 and 13,720.21

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Solution

The fourth proportional to 25,049.66, 34,568.71 and 13,720.21 is: 18,933.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,049.66 : 34,568.71 = 13,720.21 : x
  2. Step 2: Convert to fraction form
    25,049.66/34,568.71 = 13,720.21/x
  3. Step 3: Cross multiply
    25,049.66x = 34,568.71 × 13,720.21
  4. Step 4: Simplify right side
    25,049.66x = 474,289,839.91
  5. Step 5: Solve for x
    x = 474,289,839.91/25,049.66
  6. Step 6: Final answer
    x = 18,933.99

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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.