Home / 20,167.18-27,826.61-11,782.06

Finding the Fourth Proportional to 20,167.18, 27,826.61 and 11,782.06

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Solution

The fourth proportional to 20,167.18, 27,826.61 and 11,782.06 is: 16,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,167.18 : 27,826.61 = 11,782.06 : x
  2. Step 2: Convert to fraction form
    20,167.18/27,826.61 = 11,782.06/x
  3. Step 3: Cross multiply
    20,167.18x = 27,826.61 × 11,782.06
  4. Step 4: Simplify right side
    20,167.18x = 327,854,788.62
  5. Step 5: Solve for x
    x = 327,854,788.62/20,167.18
  6. Step 6: Final answer
    x = 16,256.85

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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.