Home / 20,605.08-30,951.33-19,405.32

Finding the Fourth Proportional to 20,605.08, 30,951.33 and 19,405.32

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Solution

The fourth proportional to 20,605.08, 30,951.33 and 19,405.32 is: 29,149.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605.08 : 30,951.33 = 19,405.32 : x
  2. Step 2: Convert to fraction form
    20,605.08/30,951.33 = 19,405.32/x
  3. Step 3: Cross multiply
    20,605.08x = 30,951.33 × 19,405.32
  4. Step 4: Simplify right side
    20,605.08x = 600,620,463.08
  5. Step 5: Solve for x
    x = 600,620,463.08/20,605.08
  6. Step 6: Final answer
    x = 29,149.14

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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.