Home / 28,039.49-38,694.35-15,292.44

Finding the Fourth Proportional to 28,039.49, 38,694.35 and 15,292.44

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Solution

The fourth proportional to 28,039.49, 38,694.35 and 15,292.44 is: 21,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.49 : 38,694.35 = 15,292.44 : x
  2. Step 2: Convert to fraction form
    28,039.49/38,694.35 = 15,292.44/x
  3. Step 3: Cross multiply
    28,039.49x = 38,694.35 × 15,292.44
  4. Step 4: Simplify right side
    28,039.49x = 591,730,949.25
  5. Step 5: Solve for x
    x = 591,730,949.25/28,039.49
  6. Step 6: Final answer
    x = 21,103.48

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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.