Home / 21,125.49-31,677.30-11,262.12

Finding the Fourth Proportional to 21,125.49, 31,677.30 and 11,262.12

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Solution

The fourth proportional to 21,125.49, 31,677.30 and 11,262.12 is: 16,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,125.49 : 31,677.30 = 11,262.12 : x
  2. Step 2: Convert to fraction form
    21,125.49/31,677.30 = 11,262.12/x
  3. Step 3: Cross multiply
    21,125.49x = 31,677.30 × 11,262.12
  4. Step 4: Simplify right side
    21,125.49x = 356,753,553.88
  5. Step 5: Solve for x
    x = 356,753,553.88/21,125.49
  6. Step 6: Final answer
    x = 16,887.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.