Home / 20,034.66-27,622.65-12,851.91

Finding the Fourth Proportional to 20,034.66, 27,622.65 and 12,851.91

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Solution

The fourth proportional to 20,034.66, 27,622.65 and 12,851.91 is: 17,719.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,034.66 : 27,622.65 = 12,851.91 : x
  2. Step 2: Convert to fraction form
    20,034.66/27,622.65 = 12,851.91/x
  3. Step 3: Cross multiply
    20,034.66x = 27,622.65 × 12,851.91
  4. Step 4: Simplify right side
    20,034.66x = 355,003,811.76
  5. Step 5: Solve for x
    x = 355,003,811.76/20,034.66
  6. Step 6: Final answer
    x = 17,719.48

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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.