Home / 21,500.39-29,668.91-12,067.13

Finding the Fourth Proportional to 21,500.39, 29,668.91 and 12,067.13

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Solution

The fourth proportional to 21,500.39, 29,668.91 and 12,067.13 is: 16,651.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.39 : 29,668.91 = 12,067.13 : x
  2. Step 2: Convert to fraction form
    21,500.39/29,668.91 = 12,067.13/x
  3. Step 3: Cross multiply
    21,500.39x = 29,668.91 × 12,067.13
  4. Step 4: Simplify right side
    21,500.39x = 358,018,385.25
  5. Step 5: Solve for x
    x = 358,018,385.25/21,500.39
  6. Step 6: Final answer
    x = 16,651.72

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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.