Home / 21,966.39-32,953.74-8,819.79

Finding the Fourth Proportional to 21,966.39, 32,953.74 and 8,819.79

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Solution

The fourth proportional to 21,966.39, 32,953.74 and 8,819.79 is: 13,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.39 : 32,953.74 = 8,819.79 : x
  2. Step 2: Convert to fraction form
    21,966.39/32,953.74 = 8,819.79/x
  3. Step 3: Cross multiply
    21,966.39x = 32,953.74 × 8,819.79
  4. Step 4: Simplify right side
    21,966.39x = 290,645,066.51
  5. Step 5: Solve for x
    x = 290,645,066.51/21,966.39
  6. Step 6: Final answer
    x = 13,231.35

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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.