Home / 21,459.87-32,183.82-11,960.51

Finding the Fourth Proportional to 21,459.87, 32,183.82 and 11,960.51

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Solution

The fourth proportional to 21,459.87, 32,183.82 and 11,960.51 is: 17,937.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,459.87 : 32,183.82 = 11,960.51 : x
  2. Step 2: Convert to fraction form
    21,459.87/32,183.82 = 11,960.51/x
  3. Step 3: Cross multiply
    21,459.87x = 32,183.82 × 11,960.51
  4. Step 4: Simplify right side
    21,459.87x = 384,934,740.03
  5. Step 5: Solve for x
    x = 384,934,740.03/21,459.87
  6. Step 6: Final answer
    x = 17,937.42

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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.