Home / 27,887.22-38,483.50-15,139.80

Finding the Fourth Proportional to 27,887.22, 38,483.50 and 15,139.80

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Solution

The fourth proportional to 27,887.22, 38,483.50 and 15,139.80 is: 20,892.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,887.22 : 38,483.50 = 15,139.80 : x
  2. Step 2: Convert to fraction form
    27,887.22/38,483.50 = 15,139.80/x
  3. Step 3: Cross multiply
    27,887.22x = 38,483.50 × 15,139.80
  4. Step 4: Simplify right side
    27,887.22x = 582,632,493.30
  5. Step 5: Solve for x
    x = 582,632,493.30/27,887.22
  6. Step 6: Final answer
    x = 20,892.46

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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.