Home / 27,142.25-37,453.79-15,206.09

Finding the Fourth Proportional to 27,142.25, 37,453.79 and 15,206.09

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Solution

The fourth proportional to 27,142.25, 37,453.79 and 15,206.09 is: 20,982.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,142.25 : 37,453.79 = 15,206.09 : x
  2. Step 2: Convert to fraction form
    27,142.25/37,453.79 = 15,206.09/x
  3. Step 3: Cross multiply
    27,142.25x = 37,453.79 × 15,206.09
  4. Step 4: Simplify right side
    27,142.25x = 569,525,514.31
  5. Step 5: Solve for x
    x = 569,525,514.31/27,142.25
  6. Step 6: Final answer
    x = 20,982.99

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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.