Home / 20,291.04-27,996.83-11,788.11

Finding the Fourth Proportional to 20,291.04, 27,996.83 and 11,788.11

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Solution

The fourth proportional to 20,291.04, 27,996.83 and 11,788.11 is: 16,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,291.04 : 27,996.83 = 11,788.11 : x
  2. Step 2: Convert to fraction form
    20,291.04/27,996.83 = 11,788.11/x
  3. Step 3: Cross multiply
    20,291.04x = 27,996.83 × 11,788.11
  4. Step 4: Simplify right side
    20,291.04x = 330,029,711.69
  5. Step 5: Solve for x
    x = 330,029,711.69/20,291.04
  6. Step 6: Final answer
    x = 16,264.80

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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.