Home / 20,259.82-27,958.62-11,307.16

Finding the Fourth Proportional to 20,259.82, 27,958.62 and 11,307.16

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Solution

The fourth proportional to 20,259.82, 27,958.62 and 11,307.16 is: 15,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,259.82 : 27,958.62 = 11,307.16 : x
  2. Step 2: Convert to fraction form
    20,259.82/27,958.62 = 11,307.16/x
  3. Step 3: Cross multiply
    20,259.82x = 27,958.62 × 11,307.16
  4. Step 4: Simplify right side
    20,259.82x = 316,132,589.72
  5. Step 5: Solve for x
    x = 316,132,589.72/20,259.82
  6. Step 6: Final answer
    x = 15,603.92

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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.