Home / 36,921.92-50,957.08-21,003.28

Finding the Fourth Proportional to 36,921.92, 50,957.08 and 21,003.28

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Solution

The fourth proportional to 36,921.92, 50,957.08 and 21,003.28 is: 28,987.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.92 : 50,957.08 = 21,003.28 : x
  2. Step 2: Convert to fraction form
    36,921.92/50,957.08 = 21,003.28/x
  3. Step 3: Cross multiply
    36,921.92x = 50,957.08 × 21,003.28
  4. Step 4: Simplify right side
    36,921.92x = 1,070,265,819.22
  5. Step 5: Solve for x
    x = 1,070,265,819.22/36,921.92
  6. Step 6: Final answer
    x = 28,987.27

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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.