Home / 27,775.75-38,329.57-15,842.93

Finding the Fourth Proportional to 27,775.75, 38,329.57 and 15,842.93

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Solution

The fourth proportional to 27,775.75, 38,329.57 and 15,842.93 is: 21,862.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,775.75 : 38,329.57 = 15,842.93 : x
  2. Step 2: Convert to fraction form
    27,775.75/38,329.57 = 15,842.93/x
  3. Step 3: Cross multiply
    27,775.75x = 38,329.57 × 15,842.93
  4. Step 4: Simplify right side
    27,775.75x = 607,252,694.44
  5. Step 5: Solve for x
    x = 607,252,694.44/27,775.75
  6. Step 6: Final answer
    x = 21,862.69

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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.