Home / 35,478.20-53,191.70-19,900.60

Finding the Fourth Proportional to 35,478.20, 53,191.70 and 19,900.60

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Solution

The fourth proportional to 35,478.20, 53,191.70 and 19,900.60 is: 29,836.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,478.20 : 53,191.70 = 19,900.60 : x
  2. Step 2: Convert to fraction form
    35,478.20/53,191.70 = 19,900.60/x
  3. Step 3: Cross multiply
    35,478.20x = 53,191.70 × 19,900.60
  4. Step 4: Simplify right side
    35,478.20x = 1,058,546,745.02
  5. Step 5: Solve for x
    x = 1,058,546,745.02/35,478.20
  6. Step 6: Final answer
    x = 29,836.54

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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.