Home / 36,605.80-50,516.88-20,690.31

Finding the Fourth Proportional to 36,605.80, 50,516.88 and 20,690.31

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Solution

The fourth proportional to 36,605.80, 50,516.88 and 20,690.31 is: 28,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,605.80 : 50,516.88 = 20,690.31 : x
  2. Step 2: Convert to fraction form
    36,605.80/50,516.88 = 20,690.31/x
  3. Step 3: Cross multiply
    36,605.80x = 50,516.88 × 20,690.31
  4. Step 4: Simplify right side
    36,605.80x = 1,045,209,907.43
  5. Step 5: Solve for x
    x = 1,045,209,907.43/36,605.80
  6. Step 6: Final answer
    x = 28,553.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.