Home / 28,443.75-39,250.94-15,866.07

Finding the Fourth Proportional to 28,443.75, 39,250.94 and 15,866.07

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Solution

The fourth proportional to 28,443.75, 39,250.94 and 15,866.07 is: 21,894.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,443.75 : 39,250.94 = 15,866.07 : x
  2. Step 2: Convert to fraction form
    28,443.75/39,250.94 = 15,866.07/x
  3. Step 3: Cross multiply
    28,443.75x = 39,250.94 × 15,866.07
  4. Step 4: Simplify right side
    28,443.75x = 622,758,161.61
  5. Step 5: Solve for x
    x = 622,758,161.61/28,443.75
  6. Step 6: Final answer
    x = 21,894.38

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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.