Home / 20,162.77-27,820.18-12,092.74

Finding the Fourth Proportional to 20,162.77, 27,820.18 and 12,092.74

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Solution

The fourth proportional to 20,162.77, 27,820.18 and 12,092.74 is: 16,685.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162.77 : 27,820.18 = 12,092.74 : x
  2. Step 2: Convert to fraction form
    20,162.77/27,820.18 = 12,092.74/x
  3. Step 3: Cross multiply
    20,162.77x = 27,820.18 × 12,092.74
  4. Step 4: Simplify right side
    20,162.77x = 336,422,263.03
  5. Step 5: Solve for x
    x = 336,422,263.03/20,162.77
  6. Step 6: Final answer
    x = 16,685.32

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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.