Home / 21,618.48-29,833.52-11,682.48

Finding the Fourth Proportional to 21,618.48, 29,833.52 and 11,682.48

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Solution

The fourth proportional to 21,618.48, 29,833.52 and 11,682.48 is: 16,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.48 : 29,833.52 = 11,682.48 : x
  2. Step 2: Convert to fraction form
    21,618.48/29,833.52 = 11,682.48/x
  3. Step 3: Cross multiply
    21,618.48x = 29,833.52 × 11,682.48
  4. Step 4: Simplify right side
    21,618.48x = 348,529,442.32
  5. Step 5: Solve for x
    x = 348,529,442.32/21,618.48
  6. Step 6: Final answer
    x = 16,121.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.