Home / 22,139.15-30,551.14-12,067.38

Finding the Fourth Proportional to 22,139.15, 30,551.14 and 12,067.38

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Solution

The fourth proportional to 22,139.15, 30,551.14 and 12,067.38 is: 16,652.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.15 : 30,551.14 = 12,067.38 : x
  2. Step 2: Convert to fraction form
    22,139.15/30,551.14 = 12,067.38/x
  3. Step 3: Cross multiply
    22,139.15x = 30,551.14 × 12,067.38
  4. Step 4: Simplify right side
    22,139.15x = 368,672,215.81
  5. Step 5: Solve for x
    x = 368,672,215.81/22,139.15
  6. Step 6: Final answer
    x = 16,652.50

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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.