Home / 19,120.24-28,670.51-8,581.23

Finding the Fourth Proportional to 19,120.24, 28,670.51 and 8,581.23

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Solution

The fourth proportional to 19,120.24, 28,670.51 and 8,581.23 is: 12,867.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.24 : 28,670.51 = 8,581.23 : x
  2. Step 2: Convert to fraction form
    19,120.24/28,670.51 = 8,581.23/x
  3. Step 3: Cross multiply
    19,120.24x = 28,670.51 × 8,581.23
  4. Step 4: Simplify right side
    19,120.24x = 246,028,240.53
  5. Step 5: Solve for x
    x = 246,028,240.53/19,120.24
  6. Step 6: Final answer
    x = 12,867.42

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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.