Home / 20,097.07-27,756.65-13,712.72

Finding the Fourth Proportional to 20,097.07, 27,756.65 and 13,712.72

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Solution

The fourth proportional to 20,097.07, 27,756.65 and 13,712.72 is: 18,939.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.07 : 27,756.65 = 13,712.72 : x
  2. Step 2: Convert to fraction form
    20,097.07/27,756.65 = 13,712.72/x
  3. Step 3: Cross multiply
    20,097.07x = 27,756.65 × 13,712.72
  4. Step 4: Simplify right side
    20,097.07x = 380,619,065.09
  5. Step 5: Solve for x
    x = 380,619,065.09/20,097.07
  6. Step 6: Final answer
    x = 18,939.04

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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.