Home / 20,515.24-30,771.33-6,475.75

Finding the Fourth Proportional to 20,515.24, 30,771.33 and 6,475.75

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Solution

The fourth proportional to 20,515.24, 30,771.33 and 6,475.75 is: 9,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515.24 : 30,771.33 = 6,475.75 : x
  2. Step 2: Convert to fraction form
    20,515.24/30,771.33 = 6,475.75/x
  3. Step 3: Cross multiply
    20,515.24x = 30,771.33 × 6,475.75
  4. Step 4: Simplify right side
    20,515.24x = 199,267,440.25
  5. Step 5: Solve for x
    x = 199,267,440.25/20,515.24
  6. Step 6: Final answer
    x = 9,713.14

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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.