Home / 20,207.92-27,886.98-11,711.69

Finding the Fourth Proportional to 20,207.92, 27,886.98 and 11,711.69

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Solution

The fourth proportional to 20,207.92, 27,886.98 and 11,711.69 is: 16,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.92 : 27,886.98 = 11,711.69 : x
  2. Step 2: Convert to fraction form
    20,207.92/27,886.98 = 11,711.69/x
  3. Step 3: Cross multiply
    20,207.92x = 27,886.98 × 11,711.69
  4. Step 4: Simplify right side
    20,207.92x = 326,603,673.86
  5. Step 5: Solve for x
    x = 326,603,673.86/20,207.92
  6. Step 6: Final answer
    x = 16,162.16

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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.