Home / 27,908.91-38,516.72-15,336.09

Finding the Fourth Proportional to 27,908.91, 38,516.72 and 15,336.09

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Solution

The fourth proportional to 27,908.91, 38,516.72 and 15,336.09 is: 21,165.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.91 : 38,516.72 = 15,336.09 : x
  2. Step 2: Convert to fraction form
    27,908.91/38,516.72 = 15,336.09/x
  3. Step 3: Cross multiply
    27,908.91x = 38,516.72 × 15,336.09
  4. Step 4: Simplify right side
    27,908.91x = 590,695,749.57
  5. Step 5: Solve for x
    x = 590,695,749.57/27,908.91
  6. Step 6: Final answer
    x = 21,165.13

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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.