Home / 21,619.68-29,835.54-12,672.48

Finding the Fourth Proportional to 21,619.68, 29,835.54 and 12,672.48

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Solution

The fourth proportional to 21,619.68, 29,835.54 and 12,672.48 is: 17,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619.68 : 29,835.54 = 12,672.48 : x
  2. Step 2: Convert to fraction form
    21,619.68/29,835.54 = 12,672.48/x
  3. Step 3: Cross multiply
    21,619.68x = 29,835.54 × 12,672.48
  4. Step 4: Simplify right side
    21,619.68x = 378,090,283.94
  5. Step 5: Solve for x
    x = 378,090,283.94/21,619.68
  6. Step 6: Final answer
    x = 17,488.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.