Home / 20,260.24-27,960.54-11,309.49

Finding the Fourth Proportional to 20,260.24, 27,960.54 and 11,309.49

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Solution

The fourth proportional to 20,260.24, 27,960.54 and 11,309.49 is: 15,607.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.24 : 27,960.54 = 11,309.49 : x
  2. Step 2: Convert to fraction form
    20,260.24/27,960.54 = 11,309.49/x
  3. Step 3: Cross multiply
    20,260.24x = 27,960.54 × 11,309.49
  4. Step 4: Simplify right side
    20,260.24x = 316,219,447.52
  5. Step 5: Solve for x
    x = 316,219,447.52/20,260.24
  6. Step 6: Final answer
    x = 15,607.88

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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.