Home / 21,618.14-29,833.25-12,184.88

Finding the Fourth Proportional to 21,618.14, 29,833.25 and 12,184.88

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Solution

The fourth proportional to 21,618.14, 29,833.25 and 12,184.88 is: 16,815.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.14 : 29,833.25 = 12,184.88 : x
  2. Step 2: Convert to fraction form
    21,618.14/29,833.25 = 12,184.88/x
  3. Step 3: Cross multiply
    21,618.14x = 29,833.25 × 12,184.88
  4. Step 4: Simplify right side
    21,618.14x = 363,514,361.17
  5. Step 5: Solve for x
    x = 363,514,361.17/21,618.14
  6. Step 6: Final answer
    x = 16,815.25

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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.