Home / 20,752.68-31,122.48-9,054.12

Finding the Fourth Proportional to 20,752.68, 31,122.48 and 9,054.12

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Solution

The fourth proportional to 20,752.68, 31,122.48 and 9,054.12 is: 13,578.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.68 : 31,122.48 = 9,054.12 : x
  2. Step 2: Convert to fraction form
    20,752.68/31,122.48 = 9,054.12/x
  3. Step 3: Cross multiply
    20,752.68x = 31,122.48 × 9,054.12
  4. Step 4: Simplify right side
    20,752.68x = 281,786,668.62
  5. Step 5: Solve for x
    x = 281,786,668.62/20,752.68
  6. Step 6: Final answer
    x = 13,578.33

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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.