Home / 21,634.58-29,856.26-12,203.76

Finding the Fourth Proportional to 21,634.58, 29,856.26 and 12,203.76

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Solution

The fourth proportional to 21,634.58, 29,856.26 and 12,203.76 is: 16,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,634.58 : 29,856.26 = 12,203.76 : x
  2. Step 2: Convert to fraction form
    21,634.58/29,856.26 = 12,203.76/x
  3. Step 3: Cross multiply
    21,634.58x = 29,856.26 × 12,203.76
  4. Step 4: Simplify right side
    21,634.58x = 364,358,631.54
  5. Step 5: Solve for x
    x = 364,358,631.54/21,634.58
  6. Step 6: Final answer
    x = 16,841.49

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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.