Home / 20,057.32-27,678.77-11,104.63

Finding the Fourth Proportional to 20,057.32, 27,678.77 and 11,104.63

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Solution

The fourth proportional to 20,057.32, 27,678.77 and 11,104.63 is: 15,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,057.32 : 27,678.77 = 11,104.63 : x
  2. Step 2: Convert to fraction form
    20,057.32/27,678.77 = 11,104.63/x
  3. Step 3: Cross multiply
    20,057.32x = 27,678.77 × 11,104.63
  4. Step 4: Simplify right side
    20,057.32x = 307,362,499.71
  5. Step 5: Solve for x
    x = 307,362,499.71/20,057.32
  6. Step 6: Final answer
    x = 15,324.21

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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.