Home / 20,850.48-31,265.46-9,751.32

Finding the Fourth Proportional to 20,850.48, 31,265.46 and 9,751.32

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Solution

The fourth proportional to 20,850.48, 31,265.46 and 9,751.32 is: 14,622.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.48 : 31,265.46 = 9,751.32 : x
  2. Step 2: Convert to fraction form
    20,850.48/31,265.46 = 9,751.32/x
  3. Step 3: Cross multiply
    20,850.48x = 31,265.46 × 9,751.32
  4. Step 4: Simplify right side
    20,850.48x = 304,879,505.41
  5. Step 5: Solve for x
    x = 304,879,505.41/20,850.48
  6. Step 6: Final answer
    x = 14,622.18

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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.