Home / 20,673.41-31,020.35-8,193.15

Finding the Fourth Proportional to 20,673.41, 31,020.35 and 8,193.15

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Solution

The fourth proportional to 20,673.41, 31,020.35 and 8,193.15 is: 12,293.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,673.41 : 31,020.35 = 8,193.15 : x
  2. Step 2: Convert to fraction form
    20,673.41/31,020.35 = 8,193.15/x
  3. Step 3: Cross multiply
    20,673.41x = 31,020.35 × 8,193.15
  4. Step 4: Simplify right side
    20,673.41x = 254,154,474.61
  5. Step 5: Solve for x
    x = 254,154,474.61/20,673.41
  6. Step 6: Final answer
    x = 12,293.79

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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.