Home / 21,997.99-30,357.62-11,926.77

Finding the Fourth Proportional to 21,997.99, 30,357.62 and 11,926.77

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Solution

The fourth proportional to 21,997.99, 30,357.62 and 11,926.77 is: 16,459.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.99 : 30,357.62 = 11,926.77 : x
  2. Step 2: Convert to fraction form
    21,997.99/30,357.62 = 11,926.77/x
  3. Step 3: Cross multiply
    21,997.99x = 30,357.62 × 11,926.77
  4. Step 4: Simplify right side
    21,997.99x = 362,068,351.49
  5. Step 5: Solve for x
    x = 362,068,351.49/21,997.99
  6. Step 6: Final answer
    x = 16,459.16

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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.