Home / 20,007.36-27,608.16-11,621.76

Finding the Fourth Proportional to 20,007.36, 27,608.16 and 11,621.76

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Solution

The fourth proportional to 20,007.36, 27,608.16 and 11,621.76 is: 16,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.36 : 27,608.16 = 11,621.76 : x
  2. Step 2: Convert to fraction form
    20,007.36/27,608.16 = 11,621.76/x
  3. Step 3: Cross multiply
    20,007.36x = 27,608.16 × 11,621.76
  4. Step 4: Simplify right side
    20,007.36x = 320,855,409.56
  5. Step 5: Solve for x
    x = 320,855,409.56/20,007.36
  6. Step 6: Final answer
    x = 16,036.87

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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.