Home / 21,184.69-29,233.71-12,231.66

Finding the Fourth Proportional to 21,184.69, 29,233.71 and 12,231.66

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Solution

The fourth proportional to 21,184.69, 29,233.71 and 12,231.66 is: 16,879.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.69 : 29,233.71 = 12,231.66 : x
  2. Step 2: Convert to fraction form
    21,184.69/29,233.71 = 12,231.66/x
  3. Step 3: Cross multiply
    21,184.69x = 29,233.71 × 12,231.66
  4. Step 4: Simplify right side
    21,184.69x = 357,576,801.26
  5. Step 5: Solve for x
    x = 357,576,801.26/21,184.69
  6. Step 6: Final answer
    x = 16,879.02

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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.