Home / 20,191.33-30,287.13-7,043.65

Finding the Fourth Proportional to 20,191.33, 30,287.13 and 7,043.65

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Solution

The fourth proportional to 20,191.33, 30,287.13 and 7,043.65 is: 10,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,191.33 : 30,287.13 = 7,043.65 : x
  2. Step 2: Convert to fraction form
    20,191.33/30,287.13 = 7,043.65/x
  3. Step 3: Cross multiply
    20,191.33x = 30,287.13 × 7,043.65
  4. Step 4: Simplify right side
    20,191.33x = 213,331,943.22
  5. Step 5: Solve for x
    x = 213,331,943.22/20,191.33
  6. Step 6: Final answer
    x = 10,565.52

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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.