Home / 20,198.79-30,305.47-7,053.10

Finding the Fourth Proportional to 20,198.79, 30,305.47 and 7,053.10

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Solution

The fourth proportional to 20,198.79, 30,305.47 and 7,053.10 is: 10,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.79 : 30,305.47 = 7,053.10 : x
  2. Step 2: Convert to fraction form
    20,198.79/30,305.47 = 7,053.10/x
  3. Step 3: Cross multiply
    20,198.79x = 30,305.47 × 7,053.10
  4. Step 4: Simplify right side
    20,198.79x = 213,747,510.46
  5. Step 5: Solve for x
    x = 213,747,510.46/20,198.79
  6. Step 6: Final answer
    x = 10,582.19

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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.