Home / 21,819.81-32,744.07-11,966.01

Finding the Fourth Proportional to 21,819.81, 32,744.07 and 11,966.01

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Solution

The fourth proportional to 21,819.81, 32,744.07 and 11,966.01 is: 17,956.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,819.81 : 32,744.07 = 11,966.01 : x
  2. Step 2: Convert to fraction form
    21,819.81/32,744.07 = 11,966.01/x
  3. Step 3: Cross multiply
    21,819.81x = 32,744.07 × 11,966.01
  4. Step 4: Simplify right side
    21,819.81x = 391,815,964.11
  5. Step 5: Solve for x
    x = 391,815,964.11/21,819.81
  6. Step 6: Final answer
    x = 17,956.89

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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.