Home / 20,754.83-28,623.88-13,673.81

Finding the Fourth Proportional to 20,754.83, 28,623.88 and 13,673.81

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Solution

The fourth proportional to 20,754.83, 28,623.88 and 13,673.81 is: 18,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,754.83 : 28,623.88 = 13,673.81 : x
  2. Step 2: Convert to fraction form
    20,754.83/28,623.88 = 13,673.81/x
  3. Step 3: Cross multiply
    20,754.83x = 28,623.88 × 13,673.81
  4. Step 4: Simplify right side
    20,754.83x = 391,397,585.23
  5. Step 5: Solve for x
    x = 391,397,585.23/20,754.83
  6. Step 6: Final answer
    x = 18,858.14

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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.