Home / 21,162.36-31,743.60-6,371.36

Finding the Fourth Proportional to 21,162.36, 31,743.60 and 6,371.36

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Solution

The fourth proportional to 21,162.36, 31,743.60 and 6,371.36 is: 9,557.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,162.36 : 31,743.60 = 6,371.36 : x
  2. Step 2: Convert to fraction form
    21,162.36/31,743.60 = 6,371.36/x
  3. Step 3: Cross multiply
    21,162.36x = 31,743.60 × 6,371.36
  4. Step 4: Simplify right side
    21,162.36x = 202,249,903.30
  5. Step 5: Solve for x
    x = 202,249,903.30/21,162.36
  6. Step 6: Final answer
    x = 9,557.06

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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.