Home / 20,284.17-27,991.16-11,329.89

Finding the Fourth Proportional to 20,284.17, 27,991.16 and 11,329.89

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Solution

The fourth proportional to 20,284.17, 27,991.16 and 11,329.89 is: 15,634.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284.17 : 27,991.16 = 11,329.89 : x
  2. Step 2: Convert to fraction form
    20,284.17/27,991.16 = 11,329.89/x
  3. Step 3: Cross multiply
    20,284.17x = 27,991.16 × 11,329.89
  4. Step 4: Simplify right side
    20,284.17x = 317,136,707.12
  5. Step 5: Solve for x
    x = 317,136,707.12/20,284.17
  6. Step 6: Final answer
    x = 15,634.69

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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.