Home / 20,107.81-27,748.61-11,033.01

Finding the Fourth Proportional to 20,107.81, 27,748.61 and 11,033.01

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Solution

The fourth proportional to 20,107.81, 27,748.61 and 11,033.01 is: 15,225.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.81 : 27,748.61 = 11,033.01 : x
  2. Step 2: Convert to fraction form
    20,107.81/27,748.61 = 11,033.01/x
  3. Step 3: Cross multiply
    20,107.81x = 27,748.61 × 11,033.01
  4. Step 4: Simplify right side
    20,107.81x = 306,150,677.82
  5. Step 5: Solve for x
    x = 306,150,677.82/20,107.81
  6. Step 6: Final answer
    x = 15,225.46

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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.