Home / 17,811.80-26,739.30-9,042.20

Finding the Fourth Proportional to 17,811.80, 26,739.30 and 9,042.20

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Solution

The fourth proportional to 17,811.80, 26,739.30 and 9,042.20 is: 13,574.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.80 : 26,739.30 = 9,042.20 : x
  2. Step 2: Convert to fraction form
    17,811.80/26,739.30 = 9,042.20/x
  3. Step 3: Cross multiply
    17,811.80x = 26,739.30 × 9,042.20
  4. Step 4: Simplify right side
    17,811.80x = 241,782,098.46
  5. Step 5: Solve for x
    x = 241,782,098.46/17,811.80
  6. Step 6: Final answer
    x = 13,574.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.