Home / 20,156.22-27,813.48-11,657.04

Finding the Fourth Proportional to 20,156.22, 27,813.48 and 11,657.04

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Solution

The fourth proportional to 20,156.22, 27,813.48 and 11,657.04 is: 16,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.22 : 27,813.48 = 11,657.04 : x
  2. Step 2: Convert to fraction form
    20,156.22/27,813.48 = 11,657.04/x
  3. Step 3: Cross multiply
    20,156.22x = 27,813.48 × 11,657.04
  4. Step 4: Simplify right side
    20,156.22x = 324,222,848.90
  5. Step 5: Solve for x
    x = 324,222,848.90/20,156.22
  6. Step 6: Final answer
    x = 16,085.50

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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.