Home / 27,758.62-38,306.46-15,822.64

Finding the Fourth Proportional to 27,758.62, 38,306.46 and 15,822.64

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Solution

The fourth proportional to 27,758.62, 38,306.46 and 15,822.64 is: 21,834.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,758.62 : 38,306.46 = 15,822.64 : x
  2. Step 2: Convert to fraction form
    27,758.62/38,306.46 = 15,822.64/x
  3. Step 3: Cross multiply
    27,758.62x = 38,306.46 × 15,822.64
  4. Step 4: Simplify right side
    27,758.62x = 606,109,326.25
  5. Step 5: Solve for x
    x = 606,109,326.25/27,758.62
  6. Step 6: Final answer
    x = 21,834.99

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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.