Home / 20,073.32-27,698.36-11,121.35

Finding the Fourth Proportional to 20,073.32, 27,698.36 and 11,121.35

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Solution

The fourth proportional to 20,073.32, 27,698.36 and 11,121.35 is: 15,345.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,073.32 : 27,698.36 = 11,121.35 : x
  2. Step 2: Convert to fraction form
    20,073.32/27,698.36 = 11,121.35/x
  3. Step 3: Cross multiply
    20,073.32x = 27,698.36 × 11,121.35
  4. Step 4: Simplify right side
    20,073.32x = 308,043,117.69
  5. Step 5: Solve for x
    x = 308,043,117.69/20,073.32
  6. Step 6: Final answer
    x = 15,345.90

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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.