Home / 28,071.35-38,744.98-18,512.97

Finding the Fourth Proportional to 28,071.35, 38,744.98 and 18,512.97

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Solution

The fourth proportional to 28,071.35, 38,744.98 and 18,512.97 is: 25,552.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.35 : 38,744.98 = 18,512.97 : x
  2. Step 2: Convert to fraction form
    28,071.35/38,744.98 = 18,512.97/x
  3. Step 3: Cross multiply
    28,071.35x = 38,744.98 × 18,512.97
  4. Step 4: Simplify right side
    28,071.35x = 717,284,530.24
  5. Step 5: Solve for x
    x = 717,284,530.24/28,071.35
  6. Step 6: Final answer
    x = 25,552.19

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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.