Home / 27,892.22-38,490.40-15,144.80

Finding the Fourth Proportional to 27,892.22, 38,490.40 and 15,144.80

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Solution

The fourth proportional to 27,892.22, 38,490.40 and 15,144.80 is: 20,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,892.22 : 38,490.40 = 15,144.80 : x
  2. Step 2: Convert to fraction form
    27,892.22/38,490.40 = 15,144.80/x
  3. Step 3: Cross multiply
    27,892.22x = 38,490.40 × 15,144.80
  4. Step 4: Simplify right side
    27,892.22x = 582,929,409.92
  5. Step 5: Solve for x
    x = 582,929,409.92/27,892.22
  6. Step 6: Final answer
    x = 20,899.36

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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.