Home / 20,005.17-27,606.31-11,053.05

Finding the Fourth Proportional to 20,005.17, 27,606.31 and 11,053.05

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Solution

The fourth proportional to 20,005.17, 27,606.31 and 11,053.05 is: 15,252.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,005.17 : 27,606.31 = 11,053.05 : x
  2. Step 2: Convert to fraction form
    20,005.17/27,606.31 = 11,053.05/x
  3. Step 3: Cross multiply
    20,005.17x = 27,606.31 × 11,053.05
  4. Step 4: Simplify right side
    20,005.17x = 305,133,924.75
  5. Step 5: Solve for x
    x = 305,133,924.75/20,005.17
  6. Step 6: Final answer
    x = 15,252.75

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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.