Home / 20,107.14-27,748.08-11,154.93

Finding the Fourth Proportional to 20,107.14, 27,748.08 and 11,154.93

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Solution

The fourth proportional to 20,107.14, 27,748.08 and 11,154.93 is: 15,393.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.14 : 27,748.08 = 11,154.93 : x
  2. Step 2: Convert to fraction form
    20,107.14/27,748.08 = 11,154.93/x
  3. Step 3: Cross multiply
    20,107.14x = 27,748.08 × 11,154.93
  4. Step 4: Simplify right side
    20,107.14x = 309,527,890.03
  5. Step 5: Solve for x
    x = 309,527,890.03/20,107.14
  6. Step 6: Final answer
    x = 15,393.93

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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.