Home / 27,889.72-38,486.68-15,142.41

Finding the Fourth Proportional to 27,889.72, 38,486.68 and 15,142.41

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Solution

The fourth proportional to 27,889.72, 38,486.68 and 15,142.41 is: 20,895.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,889.72 : 38,486.68 = 15,142.41 : x
  2. Step 2: Convert to fraction form
    27,889.72/38,486.68 = 15,142.41/x
  3. Step 3: Cross multiply
    27,889.72x = 38,486.68 × 15,142.41
  4. Step 4: Simplify right side
    27,889.72x = 582,781,050.24
  5. Step 5: Solve for x
    x = 582,781,050.24/27,889.72
  6. Step 6: Final answer
    x = 20,895.91

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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.