Home / 27,128.22-37,438.00-15,191.65

Finding the Fourth Proportional to 27,128.22, 37,438.00 and 15,191.65

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Solution

The fourth proportional to 27,128.22, 37,438.00 and 15,191.65 is: 20,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.22 : 37,438.00 = 15,191.65 : x
  2. Step 2: Convert to fraction form
    27,128.22/37,438.00 = 15,191.65/x
  3. Step 3: Cross multiply
    27,128.22x = 37,438.00 × 15,191.65
  4. Step 4: Simplify right side
    27,128.22x = 568,745,001.52
  5. Step 5: Solve for x
    x = 568,745,001.52/27,128.22
  6. Step 6: Final answer
    x = 20,965.07

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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.