Home / 36,410.78-54,623.97-20,623.28

Finding the Fourth Proportional to 36,410.78, 54,623.97 and 20,623.28

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Solution

The fourth proportional to 36,410.78, 54,623.97 and 20,623.28 is: 30,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,410.78 : 54,623.97 = 20,623.28 : x
  2. Step 2: Convert to fraction form
    36,410.78/54,623.97 = 20,623.28/x
  3. Step 3: Cross multiply
    36,410.78x = 54,623.97 × 20,623.28
  4. Step 4: Simplify right side
    36,410.78x = 1,126,525,154.90
  5. Step 5: Solve for x
    x = 1,126,525,154.90/36,410.78
  6. Step 6: Final answer
    x = 30,939.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.