Home / 28,578.33-42,895.11-13,797.66

Finding the Fourth Proportional to 28,578.33, 42,895.11 and 13,797.66

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Solution

The fourth proportional to 28,578.33, 42,895.11 and 13,797.66 is: 20,709.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.33 : 42,895.11 = 13,797.66 : x
  2. Step 2: Convert to fraction form
    28,578.33/42,895.11 = 13,797.66/x
  3. Step 3: Cross multiply
    28,578.33x = 42,895.11 × 13,797.66
  4. Step 4: Simplify right side
    28,578.33x = 591,852,143.44
  5. Step 5: Solve for x
    x = 591,852,143.44/28,578.33
  6. Step 6: Final answer
    x = 20,709.82

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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.