Home / 25,782.24-38,678.20-8,247.36

Finding the Fourth Proportional to 25,782.24, 38,678.20 and 8,247.36

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Solution

The fourth proportional to 25,782.24, 38,678.20 and 8,247.36 is: 12,372.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,782.24 : 38,678.20 = 8,247.36 : x
  2. Step 2: Convert to fraction form
    25,782.24/38,678.20 = 8,247.36/x
  3. Step 3: Cross multiply
    25,782.24x = 38,678.20 × 8,247.36
  4. Step 4: Simplify right side
    25,782.24x = 318,993,039.55
  5. Step 5: Solve for x
    x = 318,993,039.55/25,782.24
  6. Step 6: Final answer
    x = 12,372.59

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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.