Home / 20,155.68-27,841.44-16,809.44

Finding the Fourth Proportional to 20,155.68, 27,841.44 and 16,809.44

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Solution

The fourth proportional to 20,155.68, 27,841.44 and 16,809.44 is: 23,219.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.68 : 27,841.44 = 16,809.44 : x
  2. Step 2: Convert to fraction form
    20,155.68/27,841.44 = 16,809.44/x
  3. Step 3: Cross multiply
    20,155.68x = 27,841.44 × 16,809.44
  4. Step 4: Simplify right side
    20,155.68x = 467,999,015.19
  5. Step 5: Solve for x
    x = 467,999,015.19/20,155.68
  6. Step 6: Final answer
    x = 23,219.21

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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.