Home / 28,512.72-39,346.68-15,937.44

Finding the Fourth Proportional to 28,512.72, 39,346.68 and 15,937.44

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Solution

The fourth proportional to 28,512.72, 39,346.68 and 15,937.44 is: 21,993.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,512.72 : 39,346.68 = 15,937.44 : x
  2. Step 2: Convert to fraction form
    28,512.72/39,346.68 = 15,937.44/x
  3. Step 3: Cross multiply
    28,512.72x = 39,346.68 × 15,937.44
  4. Step 4: Simplify right side
    28,512.72x = 627,085,351.70
  5. Step 5: Solve for x
    x = 627,085,351.70/28,512.72
  6. Step 6: Final answer
    x = 21,993.18

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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.