Home / 20,005.68-27,606.24-11,622.72

Finding the Fourth Proportional to 20,005.68, 27,606.24 and 11,622.72

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Solution

The fourth proportional to 20,005.68, 27,606.24 and 11,622.72 is: 16,038.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.68 : 27,606.24 = 11,622.72 : x
  2. Step 2: Convert to fraction form
    20,005.68/27,606.24 = 11,622.72/x
  3. Step 3: Cross multiply
    20,005.68x = 27,606.24 × 11,622.72
  4. Step 4: Simplify right side
    20,005.68x = 320,859,597.77
  5. Step 5: Solve for x
    x = 320,859,597.77/20,005.68
  6. Step 6: Final answer
    x = 16,038.42

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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.