Home / 21,571.62-29,768.55-12,011.25

Finding the Fourth Proportional to 21,571.62, 29,768.55 and 12,011.25

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Solution

The fourth proportional to 21,571.62, 29,768.55 and 12,011.25 is: 16,575.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,571.62 : 29,768.55 = 12,011.25 : x
  2. Step 2: Convert to fraction form
    21,571.62/29,768.55 = 12,011.25/x
  3. Step 3: Cross multiply
    21,571.62x = 29,768.55 × 12,011.25
  4. Step 4: Simplify right side
    21,571.62x = 357,557,496.19
  5. Step 5: Solve for x
    x = 357,557,496.19/21,571.62
  6. Step 6: Final answer
    x = 16,575.37

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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.