Home / 35,391.09-53,031.54-13,198.50

Finding the Fourth Proportional to 35,391.09, 53,031.54 and 13,198.50

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Solution

The fourth proportional to 35,391.09, 53,031.54 and 13,198.50 is: 19,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,391.09 : 53,031.54 = 13,198.50 : x
  2. Step 2: Convert to fraction form
    35,391.09/53,031.54 = 13,198.50/x
  3. Step 3: Cross multiply
    35,391.09x = 53,031.54 × 13,198.50
  4. Step 4: Simplify right side
    35,391.09x = 699,936,780.69
  5. Step 5: Solve for x
    x = 699,936,780.69/35,391.09
  6. Step 6: Final answer
    x = 19,777.20

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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.