Home / 27,834.78-38,412.42-15,898.12

Finding the Fourth Proportional to 27,834.78, 38,412.42 and 15,898.12

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Solution

The fourth proportional to 27,834.78, 38,412.42 and 15,898.12 is: 21,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,834.78 : 38,412.42 = 15,898.12 : x
  2. Step 2: Convert to fraction form
    27,834.78/38,412.42 = 15,898.12/x
  3. Step 3: Cross multiply
    27,834.78x = 38,412.42 × 15,898.12
  4. Step 4: Simplify right side
    27,834.78x = 610,685,262.65
  5. Step 5: Solve for x
    x = 610,685,262.65/27,834.78
  6. Step 6: Final answer
    x = 21,939.65

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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.