Home / 20,536.91-30,782.77-8,054.61

Finding the Fourth Proportional to 20,536.91, 30,782.77 and 8,054.61

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Solution

The fourth proportional to 20,536.91, 30,782.77 and 8,054.61 is: 12,073.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,536.91 : 30,782.77 = 8,054.61 : x
  2. Step 2: Convert to fraction form
    20,536.91/30,782.77 = 8,054.61/x
  3. Step 3: Cross multiply
    20,536.91x = 30,782.77 × 8,054.61
  4. Step 4: Simplify right side
    20,536.91x = 247,943,071.50
  5. Step 5: Solve for x
    x = 247,943,071.50/20,536.91
  6. Step 6: Final answer
    x = 12,073.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.