Home / 20,051.31-27,667.91-11,098.79

Finding the Fourth Proportional to 20,051.31, 27,667.91 and 11,098.79

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Solution

The fourth proportional to 20,051.31, 27,667.91 and 11,098.79 is: 15,314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,051.31 : 27,667.91 = 11,098.79 : x
  2. Step 2: Convert to fraction form
    20,051.31/27,667.91 = 11,098.79/x
  3. Step 3: Cross multiply
    20,051.31x = 27,667.91 × 11,098.79
  4. Step 4: Simplify right side
    20,051.31x = 307,080,315.99
  5. Step 5: Solve for x
    x = 307,080,315.99/20,051.31
  6. Step 6: Final answer
    x = 15,314.72

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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.