Home / 20,262.57-27,962.42-11,309.91

Finding the Fourth Proportional to 20,262.57, 27,962.42 and 11,309.91

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Solution

The fourth proportional to 20,262.57, 27,962.42 and 11,309.91 is: 15,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.57 : 27,962.42 = 11,309.91 : x
  2. Step 2: Convert to fraction form
    20,262.57/27,962.42 = 11,309.91/x
  3. Step 3: Cross multiply
    20,262.57x = 27,962.42 × 11,309.91
  4. Step 4: Simplify right side
    20,262.57x = 316,252,397.03
  5. Step 5: Solve for x
    x = 316,252,397.03/20,262.57
  6. Step 6: Final answer
    x = 15,607.71

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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.