Home / 20,063.29-27,679.91-12,993.61

Finding the Fourth Proportional to 20,063.29, 27,679.91 and 12,993.61

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Solution

The fourth proportional to 20,063.29, 27,679.91 and 12,993.61 is: 17,926.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,063.29 : 27,679.91 = 12,993.61 : x
  2. Step 2: Convert to fraction form
    20,063.29/27,679.91 = 12,993.61/x
  3. Step 3: Cross multiply
    20,063.29x = 27,679.91 × 12,993.61
  4. Step 4: Simplify right side
    20,063.29x = 359,661,890.41
  5. Step 5: Solve for x
    x = 359,661,890.41/20,063.29
  6. Step 6: Final answer
    x = 17,926.37

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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.