Home / 20,152.36-27,810.32-11,200.44

Finding the Fourth Proportional to 20,152.36, 27,810.32 and 11,200.44

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Solution

The fourth proportional to 20,152.36, 27,810.32 and 11,200.44 is: 15,456.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.36 : 27,810.32 = 11,200.44 : x
  2. Step 2: Convert to fraction form
    20,152.36/27,810.32 = 11,200.44/x
  3. Step 3: Cross multiply
    20,152.36x = 27,810.32 × 11,200.44
  4. Step 4: Simplify right side
    20,152.36x = 311,487,820.54
  5. Step 5: Solve for x
    x = 311,487,820.54/20,152.36
  6. Step 6: Final answer
    x = 15,456.64

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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.