Home / 21,063.12-29,067.06-12,112.35

Finding the Fourth Proportional to 21,063.12, 29,067.06 and 12,112.35

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Solution

The fourth proportional to 21,063.12, 29,067.06 and 12,112.35 is: 16,715.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.12 : 29,067.06 = 12,112.35 : x
  2. Step 2: Convert to fraction form
    21,063.12/29,067.06 = 12,112.35/x
  3. Step 3: Cross multiply
    21,063.12x = 29,067.06 × 12,112.35
  4. Step 4: Simplify right side
    21,063.12x = 352,070,404.19
  5. Step 5: Solve for x
    x = 352,070,404.19/21,063.12
  6. Step 6: Final answer
    x = 16,715.02

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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.