Home / 27,858.23-38,443.88-15,282.71

Finding the Fourth Proportional to 27,858.23, 38,443.88 and 15,282.71

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Solution

The fourth proportional to 27,858.23, 38,443.88 and 15,282.71 is: 21,089.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,858.23 : 38,443.88 = 15,282.71 : x
  2. Step 2: Convert to fraction form
    27,858.23/38,443.88 = 15,282.71/x
  3. Step 3: Cross multiply
    27,858.23x = 38,443.88 × 15,282.71
  4. Step 4: Simplify right side
    27,858.23x = 587,526,669.31
  5. Step 5: Solve for x
    x = 587,526,669.31/27,858.23
  6. Step 6: Final answer
    x = 21,089.88

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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.