Home / 21,531.22-29,714.33-12,100.39

Finding the Fourth Proportional to 21,531.22, 29,714.33 and 12,100.39

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Solution

The fourth proportional to 21,531.22, 29,714.33 and 12,100.39 is: 16,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,531.22 : 29,714.33 = 12,100.39 : x
  2. Step 2: Convert to fraction form
    21,531.22/29,714.33 = 12,100.39/x
  3. Step 3: Cross multiply
    21,531.22x = 29,714.33 × 12,100.39
  4. Step 4: Simplify right side
    21,531.22x = 359,554,981.59
  5. Step 5: Solve for x
    x = 359,554,981.59/21,531.22
  6. Step 6: Final answer
    x = 16,699.24

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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.