Home / 21,089.88-31,625.64-11,226.96

Finding the Fourth Proportional to 21,089.88, 31,625.64 and 11,226.96

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Solution

The fourth proportional to 21,089.88, 31,625.64 and 11,226.96 is: 16,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.88 : 31,625.64 = 11,226.96 : x
  2. Step 2: Convert to fraction form
    21,089.88/31,625.64 = 11,226.96/x
  3. Step 3: Cross multiply
    21,089.88x = 31,625.64 × 11,226.96
  4. Step 4: Simplify right side
    21,089.88x = 355,059,795.25
  5. Step 5: Solve for x
    x = 355,059,795.25/21,089.88
  6. Step 6: Final answer
    x = 16,835.55

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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.