Home / 20,578.53-30,868.25-14,247.17

Finding the Fourth Proportional to 20,578.53, 30,868.25 and 14,247.17

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Solution

The fourth proportional to 20,578.53, 30,868.25 and 14,247.17 is: 21,371.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.53 : 30,868.25 = 14,247.17 : x
  2. Step 2: Convert to fraction form
    20,578.53/30,868.25 = 14,247.17/x
  3. Step 3: Cross multiply
    20,578.53x = 30,868.25 × 14,247.17
  4. Step 4: Simplify right side
    20,578.53x = 439,785,205.35
  5. Step 5: Solve for x
    x = 439,785,205.35/20,578.53
  6. Step 6: Final answer
    x = 21,371.07

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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.