Home / 21,582.09-29,781.09-12,022.52

Finding the Fourth Proportional to 21,582.09, 29,781.09 and 12,022.52

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Solution

The fourth proportional to 21,582.09, 29,781.09 and 12,022.52 is: 16,589.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.09 : 29,781.09 = 12,022.52 : x
  2. Step 2: Convert to fraction form
    21,582.09/29,781.09 = 12,022.52/x
  3. Step 3: Cross multiply
    21,582.09x = 29,781.09 × 12,022.52
  4. Step 4: Simplify right side
    21,582.09x = 358,043,601.24
  5. Step 5: Solve for x
    x = 358,043,601.24/21,582.09
  6. Step 6: Final answer
    x = 16,589.85

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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.