Home / 20,095.31-27,732.08-11,021.09

Finding the Fourth Proportional to 20,095.31, 27,732.08 and 11,021.09

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Solution

The fourth proportional to 20,095.31, 27,732.08 and 11,021.09 is: 15,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095.31 : 27,732.08 = 11,021.09 : x
  2. Step 2: Convert to fraction form
    20,095.31/27,732.08 = 11,021.09/x
  3. Step 3: Cross multiply
    20,095.31x = 27,732.08 × 11,021.09
  4. Step 4: Simplify right side
    20,095.31x = 305,637,632.54
  5. Step 5: Solve for x
    x = 305,637,632.54/20,095.31
  6. Step 6: Final answer
    x = 15,209.40

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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.