Home / 20,986.09-31,473.36-6,193.46

Finding the Fourth Proportional to 20,986.09, 31,473.36 and 6,193.46

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Solution

The fourth proportional to 20,986.09, 31,473.36 and 6,193.46 is: 9,288.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.09 : 31,473.36 = 6,193.46 : x
  2. Step 2: Convert to fraction form
    20,986.09/31,473.36 = 6,193.46/x
  3. Step 3: Cross multiply
    20,986.09x = 31,473.36 × 6,193.46
  4. Step 4: Simplify right side
    20,986.09x = 194,929,074.91
  5. Step 5: Solve for x
    x = 194,929,074.91/20,986.09
  6. Step 6: Final answer
    x = 9,288.49

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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.