Home / 21,355.98-29,471.72-11,924.52

Finding the Fourth Proportional to 21,355.98, 29,471.72 and 11,924.52

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Solution

The fourth proportional to 21,355.98, 29,471.72 and 11,924.52 is: 16,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355.98 : 29,471.72 = 11,924.52 : x
  2. Step 2: Convert to fraction form
    21,355.98/29,471.72 = 11,924.52/x
  3. Step 3: Cross multiply
    21,355.98x = 29,471.72 × 11,924.52
  4. Step 4: Simplify right side
    21,355.98x = 351,436,054.95
  5. Step 5: Solve for x
    x = 351,436,054.95/21,355.98
  6. Step 6: Final answer
    x = 16,456.10

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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.