Home / 28,571.01-42,884.15-13,790.33

Finding the Fourth Proportional to 28,571.01, 42,884.15 and 13,790.33

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Solution

The fourth proportional to 28,571.01, 42,884.15 and 13,790.33 is: 20,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,571.01 : 42,884.15 = 13,790.33 : x
  2. Step 2: Convert to fraction form
    28,571.01/42,884.15 = 13,790.33/x
  3. Step 3: Cross multiply
    28,571.01x = 42,884.15 × 13,790.33
  4. Step 4: Simplify right side
    28,571.01x = 591,386,296.90
  5. Step 5: Solve for x
    x = 591,386,296.90/28,571.01
  6. Step 6: Final answer
    x = 20,698.82

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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.