Home / 21,786.36-30,064.68-12,095.82

Finding the Fourth Proportional to 21,786.36, 30,064.68 and 12,095.82

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Solution

The fourth proportional to 21,786.36, 30,064.68 and 12,095.82 is: 16,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,786.36 : 30,064.68 = 12,095.82 : x
  2. Step 2: Convert to fraction form
    21,786.36/30,064.68 = 12,095.82/x
  3. Step 3: Cross multiply
    21,786.36x = 30,064.68 × 12,095.82
  4. Step 4: Simplify right side
    21,786.36x = 363,656,957.64
  5. Step 5: Solve for x
    x = 363,656,957.64/21,786.36
  6. Step 6: Final answer
    x = 16,691.96

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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.