Home / 35,939.73-53,910.02-20,142.30

Finding the Fourth Proportional to 35,939.73, 53,910.02 and 20,142.30

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Solution

The fourth proportional to 35,939.73, 53,910.02 and 20,142.30 is: 30,213.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,939.73 : 53,910.02 = 20,142.30 : x
  2. Step 2: Convert to fraction form
    35,939.73/53,910.02 = 20,142.30/x
  3. Step 3: Cross multiply
    35,939.73x = 53,910.02 × 20,142.30
  4. Step 4: Simplify right side
    35,939.73x = 1,085,871,795.85
  5. Step 5: Solve for x
    x = 1,085,871,795.85/35,939.73
  6. Step 6: Final answer
    x = 30,213.69

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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.