Home / 36,220.36-49,985.48-20,305.12

Finding the Fourth Proportional to 36,220.36, 49,985.48 and 20,305.12

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Solution

The fourth proportional to 36,220.36, 49,985.48 and 20,305.12 is: 28,021.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,220.36 : 49,985.48 = 20,305.12 : x
  2. Step 2: Convert to fraction form
    36,220.36/49,985.48 = 20,305.12/x
  3. Step 3: Cross multiply
    36,220.36x = 49,985.48 × 20,305.12
  4. Step 4: Simplify right side
    36,220.36x = 1,014,961,169.66
  5. Step 5: Solve for x
    x = 1,014,961,169.66/36,220.36
  6. Step 6: Final answer
    x = 28,021.84

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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.