Home / 39,930.93-59,908.86-11,851.11

Finding the Fourth Proportional to 39,930.93, 59,908.86 and 11,851.11

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Solution

The fourth proportional to 39,930.93, 59,908.86 and 11,851.11 is: 17,780.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,930.93 : 59,908.86 = 11,851.11 : x
  2. Step 2: Convert to fraction form
    39,930.93/59,908.86 = 11,851.11/x
  3. Step 3: Cross multiply
    39,930.93x = 59,908.86 × 11,851.11
  4. Step 4: Simplify right side
    39,930.93x = 709,986,489.83
  5. Step 5: Solve for x
    x = 709,986,489.83/39,930.93
  6. Step 6: Final answer
    x = 17,780.36

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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.