Home / 28,538.25-39,382.92-15,963

Finding the Fourth Proportional to 28,538.25, 39,382.92 and 15,963

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Solution

The fourth proportional to 28,538.25, 39,382.92 and 15,963 is: 22,029.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,538.25 : 39,382.92 = 15,963 : x
  2. Step 2: Convert to fraction form
    28,538.25/39,382.92 = 15,963/x
  3. Step 3: Cross multiply
    28,538.25x = 39,382.92 × 15,963
  4. Step 4: Simplify right side
    28,538.25x = 628,669,551.96
  5. Step 5: Solve for x
    x = 628,669,551.96/28,538.25
  6. Step 6: Final answer
    x = 22,029.02

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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.