Home / 21,295.22-29,386.77-11,863.58

Finding the Fourth Proportional to 21,295.22, 29,386.77 and 11,863.58

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Solution

The fourth proportional to 21,295.22, 29,386.77 and 11,863.58 is: 16,371.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.22 : 29,386.77 = 11,863.58 : x
  2. Step 2: Convert to fraction form
    21,295.22/29,386.77 = 11,863.58/x
  3. Step 3: Cross multiply
    21,295.22x = 29,386.77 × 11,863.58
  4. Step 4: Simplify right side
    21,295.22x = 348,632,296.84
  5. Step 5: Solve for x
    x = 348,632,296.84/21,295.22
  6. Step 6: Final answer
    x = 16,371.39

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1.5x scale

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.