Home / 39,976.42-59,959.16-11,900.81

Finding the Fourth Proportional to 39,976.42, 59,959.16 and 11,900.81

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Solution

The fourth proportional to 39,976.42, 59,959.16 and 11,900.81 is: 17,849.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,976.42 : 59,959.16 = 11,900.81 : x
  2. Step 2: Convert to fraction form
    39,976.42/59,959.16 = 11,900.81/x
  3. Step 3: Cross multiply
    39,976.42x = 59,959.16 × 11,900.81
  4. Step 4: Simplify right side
    39,976.42x = 713,562,570.92
  5. Step 5: Solve for x
    x = 713,562,570.92/39,976.42
  6. Step 6: Final answer
    x = 17,849.59

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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.