Home / 20,642.67-30,961.35-6,604.16

Finding the Fourth Proportional to 20,642.67, 30,961.35 and 6,604.16

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Solution

The fourth proportional to 20,642.67, 30,961.35 and 6,604.16 is: 9,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642.67 : 30,961.35 = 6,604.16 : x
  2. Step 2: Convert to fraction form
    20,642.67/30,961.35 = 6,604.16/x
  3. Step 3: Cross multiply
    20,642.67x = 30,961.35 × 6,604.16
  4. Step 4: Simplify right side
    20,642.67x = 204,473,554.41
  5. Step 5: Solve for x
    x = 204,473,554.41/20,642.67
  6. Step 6: Final answer
    x = 9,905.38

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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.