Home / 20,262.16-27,961.71-11,309.58

Finding the Fourth Proportional to 20,262.16, 27,961.71 and 11,309.58

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Solution

The fourth proportional to 20,262.16, 27,961.71 and 11,309.58 is: 15,607.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.16 : 27,961.71 = 11,309.58 : x
  2. Step 2: Convert to fraction form
    20,262.16/27,961.71 = 11,309.58/x
  3. Step 3: Cross multiply
    20,262.16x = 27,961.71 × 11,309.58
  4. Step 4: Simplify right side
    20,262.16x = 316,235,173.43
  5. Step 5: Solve for x
    x = 316,235,173.43/20,262.16
  6. Step 6: Final answer
    x = 15,607.18

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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.