Home / 20,758.24-31,149.24-7,608.88

Finding the Fourth Proportional to 20,758.24, 31,149.24 and 7,608.88

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Solution

The fourth proportional to 20,758.24, 31,149.24 and 7,608.88 is: 11,417.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758.24 : 31,149.24 = 7,608.88 : x
  2. Step 2: Convert to fraction form
    20,758.24/31,149.24 = 7,608.88/x
  3. Step 3: Cross multiply
    20,758.24x = 31,149.24 × 7,608.88
  4. Step 4: Simplify right side
    20,758.24x = 237,010,829.25
  5. Step 5: Solve for x
    x = 237,010,829.25/20,758.24
  6. Step 6: Final answer
    x = 11,417.67

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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.