Home / 21,498.80-29,668.04-12,067.12

Finding the Fourth Proportional to 21,498.80, 29,668.04 and 12,067.12

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Solution

The fourth proportional to 21,498.80, 29,668.04 and 12,067.12 is: 16,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.80 : 29,668.04 = 12,067.12 : x
  2. Step 2: Convert to fraction form
    21,498.80/29,668.04 = 12,067.12/x
  3. Step 3: Cross multiply
    21,498.80x = 29,668.04 × 12,067.12
  4. Step 4: Simplify right side
    21,498.80x = 358,007,798.84
  5. Step 5: Solve for x
    x = 358,007,798.84/21,498.80
  6. Step 6: Final answer
    x = 16,652.45

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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.