Home / 21,212.48-29,272.07-11,780.44

Finding the Fourth Proportional to 21,212.48, 29,272.07 and 11,780.44

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Solution

The fourth proportional to 21,212.48, 29,272.07 and 11,780.44 is: 16,256.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.48 : 29,272.07 = 11,780.44 : x
  2. Step 2: Convert to fraction form
    21,212.48/29,272.07 = 11,780.44/x
  3. Step 3: Cross multiply
    21,212.48x = 29,272.07 × 11,780.44
  4. Step 4: Simplify right side
    21,212.48x = 344,837,820.58
  5. Step 5: Solve for x
    x = 344,837,820.58/21,212.48
  6. Step 6: Final answer
    x = 16,256.36

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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.