Home / 21,196.08-29,254.32-12,243.92

Finding the Fourth Proportional to 21,196.08, 29,254.32 and 12,243.92

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Solution

The fourth proportional to 21,196.08, 29,254.32 and 12,243.92 is: 16,898.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,196.08 : 29,254.32 = 12,243.92 : x
  2. Step 2: Convert to fraction form
    21,196.08/29,254.32 = 12,243.92/x
  3. Step 3: Cross multiply
    21,196.08x = 29,254.32 × 12,243.92
  4. Step 4: Simplify right side
    21,196.08x = 358,187,553.73
  5. Step 5: Solve for x
    x = 358,187,553.73/21,196.08
  6. Step 6: Final answer
    x = 16,898.76

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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.