Home / 21,622.99-32,376.06-11,212.87

Finding the Fourth Proportional to 21,622.99, 32,376.06 and 11,212.87

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Solution

The fourth proportional to 21,622.99, 32,376.06 and 11,212.87 is: 16,789.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,622.99 : 32,376.06 = 11,212.87 : x
  2. Step 2: Convert to fraction form
    21,622.99/32,376.06 = 11,212.87/x
  3. Step 3: Cross multiply
    21,622.99x = 32,376.06 × 11,212.87
  4. Step 4: Simplify right side
    21,622.99x = 363,028,551.89
  5. Step 5: Solve for x
    x = 363,028,551.89/21,622.99
  6. Step 6: Final answer
    x = 16,789.01

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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.