Home / 20,516.98-30,778.20-7,366.26

Finding the Fourth Proportional to 20,516.98, 30,778.20 and 7,366.26

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Solution

The fourth proportional to 20,516.98, 30,778.20 and 7,366.26 is: 11,050.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,516.98 : 30,778.20 = 7,366.26 : x
  2. Step 2: Convert to fraction form
    20,516.98/30,778.20 = 7,366.26/x
  3. Step 3: Cross multiply
    20,516.98x = 30,778.20 × 7,366.26
  4. Step 4: Simplify right side
    20,516.98x = 226,720,223.53
  5. Step 5: Solve for x
    x = 226,720,223.53/20,516.98
  6. Step 6: Final answer
    x = 11,050.37

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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.