Home / 20,065.93-27,690.91-11,567.99

Finding the Fourth Proportional to 20,065.93, 27,690.91 and 11,567.99

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Solution

The fourth proportional to 20,065.93, 27,690.91 and 11,567.99 is: 15,963.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.93 : 27,690.91 = 11,567.99 : x
  2. Step 2: Convert to fraction form
    20,065.93/27,690.91 = 11,567.99/x
  3. Step 3: Cross multiply
    20,065.93x = 27,690.91 × 11,567.99
  4. Step 4: Simplify right side
    20,065.93x = 320,328,210.28
  5. Step 5: Solve for x
    x = 320,328,210.28/20,065.93
  6. Step 6: Final answer
    x = 15,963.79

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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.