Home / 20,195.89-30,291.67-7,048.51

Finding the Fourth Proportional to 20,195.89, 30,291.67 and 7,048.51

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Solution

The fourth proportional to 20,195.89, 30,291.67 and 7,048.51 is: 10,572.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.89 : 30,291.67 = 7,048.51 : x
  2. Step 2: Convert to fraction form
    20,195.89/30,291.67 = 7,048.51/x
  3. Step 3: Cross multiply
    20,195.89x = 30,291.67 × 7,048.51
  4. Step 4: Simplify right side
    20,195.89x = 213,511,138.91
  5. Step 5: Solve for x
    x = 213,511,138.91/20,195.89
  6. Step 6: Final answer
    x = 10,572.01

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1.5x scale

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.