Home / 21,672.37-29,907.52-12,112.39

Finding the Fourth Proportional to 21,672.37, 29,907.52 and 12,112.39

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Solution

The fourth proportional to 21,672.37, 29,907.52 and 12,112.39 is: 16,714.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.37 : 29,907.52 = 12,112.39 : x
  2. Step 2: Convert to fraction form
    21,672.37/29,907.52 = 12,112.39/x
  3. Step 3: Cross multiply
    21,672.37x = 29,907.52 × 12,112.39
  4. Step 4: Simplify right side
    21,672.37x = 362,251,546.17
  5. Step 5: Solve for x
    x = 362,251,546.17/21,672.37
  6. Step 6: Final answer
    x = 16,714.90

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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.