Home / 27,516.49-37,979.56-15,586.86

Finding the Fourth Proportional to 27,516.49, 37,979.56 and 15,586.86

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Solution

The fourth proportional to 27,516.49, 37,979.56 and 15,586.86 is: 21,513.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,516.49 : 37,979.56 = 15,586.86 : x
  2. Step 2: Convert to fraction form
    27,516.49/37,979.56 = 15,586.86/x
  3. Step 3: Cross multiply
    27,516.49x = 37,979.56 × 15,586.86
  4. Step 4: Simplify right side
    27,516.49x = 591,982,202.65
  5. Step 5: Solve for x
    x = 591,982,202.65/27,516.49
  6. Step 6: Final answer
    x = 21,513.72

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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.