Home / 20,606.24-30,915.12-6,764.96

Finding the Fourth Proportional to 20,606.24, 30,915.12 and 6,764.96

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Solution

The fourth proportional to 20,606.24, 30,915.12 and 6,764.96 is: 10,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.24 : 30,915.12 = 6,764.96 : x
  2. Step 2: Convert to fraction form
    20,606.24/30,915.12 = 6,764.96/x
  3. Step 3: Cross multiply
    20,606.24x = 30,915.12 × 6,764.96
  4. Step 4: Simplify right side
    20,606.24x = 209,139,550.20
  5. Step 5: Solve for x
    x = 209,139,550.20/20,606.24
  6. Step 6: Final answer
    x = 10,149.33

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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.