Home / 20,065.17-27,690.32-12,007.11

Finding the Fourth Proportional to 20,065.17, 27,690.32 and 12,007.11

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Solution

The fourth proportional to 20,065.17, 27,690.32 and 12,007.11 is: 16,570.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.17 : 27,690.32 = 12,007.11 : x
  2. Step 2: Convert to fraction form
    20,065.17/27,690.32 = 12,007.11/x
  3. Step 3: Cross multiply
    20,065.17x = 27,690.32 × 12,007.11
  4. Step 4: Simplify right side
    20,065.17x = 332,480,658.14
  5. Step 5: Solve for x
    x = 332,480,658.14/20,065.17
  6. Step 6: Final answer
    x = 16,570.04

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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.