Home / 19,395.81-29,036.30-11,976.41

Finding the Fourth Proportional to 19,395.81, 29,036.30 and 11,976.41

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Solution

The fourth proportional to 19,395.81, 29,036.30 and 11,976.41 is: 17,929.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,395.81 : 29,036.30 = 11,976.41 : x
  2. Step 2: Convert to fraction form
    19,395.81/29,036.30 = 11,976.41/x
  3. Step 3: Cross multiply
    19,395.81x = 29,036.30 × 11,976.41
  4. Step 4: Simplify right side
    19,395.81x = 347,750,633.68
  5. Step 5: Solve for x
    x = 347,750,633.68/19,395.81
  6. Step 6: Final answer
    x = 17,929.16

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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.