Home / 21,544.94-29,732.16-12,590.65

Finding the Fourth Proportional to 21,544.94, 29,732.16 and 12,590.65

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Solution

The fourth proportional to 21,544.94, 29,732.16 and 12,590.65 is: 17,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.94 : 29,732.16 = 12,590.65 : x
  2. Step 2: Convert to fraction form
    21,544.94/29,732.16 = 12,590.65/x
  3. Step 3: Cross multiply
    21,544.94x = 29,732.16 × 12,590.65
  4. Step 4: Simplify right side
    21,544.94x = 374,347,157.35
  5. Step 5: Solve for x
    x = 374,347,157.35/21,544.94
  6. Step 6: Final answer
    x = 17,375.18

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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.