Home / 18,830.24-28,228.32-8,959.52

Finding the Fourth Proportional to 18,830.24, 28,228.32 and 8,959.52

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Solution

The fourth proportional to 18,830.24, 28,228.32 and 8,959.52 is: 13,431.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830.24 : 28,228.32 = 8,959.52 : x
  2. Step 2: Convert to fraction form
    18,830.24/28,228.32 = 8,959.52/x
  3. Step 3: Cross multiply
    18,830.24x = 28,228.32 × 8,959.52
  4. Step 4: Simplify right side
    18,830.24x = 252,912,197.61
  5. Step 5: Solve for x
    x = 252,912,197.61/18,830.24
  6. Step 6: Final answer
    x = 13,431.17

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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.