Home / 27,987.38-38,623.09-15,240.94

Finding the Fourth Proportional to 27,987.38, 38,623.09 and 15,240.94

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Solution

The fourth proportional to 27,987.38, 38,623.09 and 15,240.94 is: 21,032.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.38 : 38,623.09 = 15,240.94 : x
  2. Step 2: Convert to fraction form
    27,987.38/38,623.09 = 15,240.94/x
  3. Step 3: Cross multiply
    27,987.38x = 38,623.09 × 15,240.94
  4. Step 4: Simplify right side
    27,987.38x = 588,652,197.30
  5. Step 5: Solve for x
    x = 588,652,197.30/27,987.38
  6. Step 6: Final answer
    x = 21,032.77

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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.