Home / 28,871.26-39,842.44-15,623.26

Finding the Fourth Proportional to 28,871.26, 39,842.44 and 15,623.26

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Solution

The fourth proportional to 28,871.26, 39,842.44 and 15,623.26 is: 21,560.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.26 : 39,842.44 = 15,623.26 : x
  2. Step 2: Convert to fraction form
    28,871.26/39,842.44 = 15,623.26/x
  3. Step 3: Cross multiply
    28,871.26x = 39,842.44 × 15,623.26
  4. Step 4: Simplify right side
    28,871.26x = 622,468,799.15
  5. Step 5: Solve for x
    x = 622,468,799.15/28,871.26
  6. Step 6: Final answer
    x = 21,560.15

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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.