Home / 21,202.96-29,261.10-12,251.65

Finding the Fourth Proportional to 21,202.96, 29,261.10 and 12,251.65

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Solution

The fourth proportional to 21,202.96, 29,261.10 and 12,251.65 is: 16,907.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,202.96 : 29,261.10 = 12,251.65 : x
  2. Step 2: Convert to fraction form
    21,202.96/29,261.10 = 12,251.65/x
  3. Step 3: Cross multiply
    21,202.96x = 29,261.10 × 12,251.65
  4. Step 4: Simplify right side
    21,202.96x = 358,496,755.82
  5. Step 5: Solve for x
    x = 358,496,755.82/21,202.96
  6. Step 6: Final answer
    x = 16,907.86

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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.