Home / 20,272.67-27,989.15-13,106.03

Finding the Fourth Proportional to 20,272.67, 27,989.15 and 13,106.03

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Solution

The fourth proportional to 20,272.67, 27,989.15 and 13,106.03 is: 18,094.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.67 : 27,989.15 = 13,106.03 : x
  2. Step 2: Convert to fraction form
    20,272.67/27,989.15 = 13,106.03/x
  3. Step 3: Cross multiply
    20,272.67x = 27,989.15 × 13,106.03
  4. Step 4: Simplify right side
    20,272.67x = 366,826,644.02
  5. Step 5: Solve for x
    x = 366,826,644.02/20,272.67
  6. Step 6: Final answer
    x = 18,094.64

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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.