Home / 21,186.76-29,371.68-20,063.29

Finding the Fourth Proportional to 21,186.76, 29,371.68 and 20,063.29

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Solution

The fourth proportional to 21,186.76, 29,371.68 and 20,063.29 is: 27,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,186.76 : 29,371.68 = 20,063.29 : x
  2. Step 2: Convert to fraction form
    21,186.76/29,371.68 = 20,063.29/x
  3. Step 3: Cross multiply
    21,186.76x = 29,371.68 × 20,063.29
  4. Step 4: Simplify right side
    21,186.76x = 589,292,533.63
  5. Step 5: Solve for x
    x = 589,292,533.63/21,186.76
  6. Step 6: Final answer
    x = 27,814.19

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.