Home / 20,698.48-31,039.32-10,173.04

Finding the Fourth Proportional to 20,698.48, 31,039.32 and 10,173.04

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Solution

The fourth proportional to 20,698.48, 31,039.32 and 10,173.04 is: 15,255.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.48 : 31,039.32 = 10,173.04 : x
  2. Step 2: Convert to fraction form
    20,698.48/31,039.32 = 10,173.04/x
  3. Step 3: Cross multiply
    20,698.48x = 31,039.32 × 10,173.04
  4. Step 4: Simplify right side
    20,698.48x = 315,764,243.93
  5. Step 5: Solve for x
    x = 315,764,243.93/20,698.48
  6. Step 6: Final answer
    x = 15,255.43

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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.