Home / 20,111.04-30,161.88-7,632.36

Finding the Fourth Proportional to 20,111.04, 30,161.88 and 7,632.36

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Solution

The fourth proportional to 20,111.04, 30,161.88 and 7,632.36 is: 11,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.04 : 30,161.88 = 7,632.36 : x
  2. Step 2: Convert to fraction form
    20,111.04/30,161.88 = 7,632.36/x
  3. Step 3: Cross multiply
    20,111.04x = 30,161.88 × 7,632.36
  4. Step 4: Simplify right side
    20,111.04x = 230,206,326.44
  5. Step 5: Solve for x
    x = 230,206,326.44/20,111.04
  6. Step 6: Final answer
    x = 11,446.76

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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.