Home / 28,508.91-39,287.48-20,110.83

Finding the Fourth Proportional to 28,508.91, 39,287.48 and 20,110.83

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Solution

The fourth proportional to 28,508.91, 39,287.48 and 20,110.83 is: 27,714.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.91 : 39,287.48 = 20,110.83 : x
  2. Step 2: Convert to fraction form
    28,508.91/39,287.48 = 20,110.83/x
  3. Step 3: Cross multiply
    28,508.91x = 39,287.48 × 20,110.83
  4. Step 4: Simplify right side
    28,508.91x = 790,103,730.85
  5. Step 5: Solve for x
    x = 790,103,730.85/28,508.91
  6. Step 6: Final answer
    x = 27,714.27

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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.