Home / 20,187.33-30,281.13-7,039.65

Finding the Fourth Proportional to 20,187.33, 30,281.13 and 7,039.65

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Solution

The fourth proportional to 20,187.33, 30,281.13 and 7,039.65 is: 10,559.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.33 : 30,281.13 = 7,039.65 : x
  2. Step 2: Convert to fraction form
    20,187.33/30,281.13 = 7,039.65/x
  3. Step 3: Cross multiply
    20,187.33x = 30,281.13 × 7,039.65
  4. Step 4: Simplify right side
    20,187.33x = 213,168,556.80
  5. Step 5: Solve for x
    x = 213,168,556.80/20,187.33
  6. Step 6: Final answer
    x = 10,559.52

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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.