Home / 28,695.66-39,582.14-19,727.59

Finding the Fourth Proportional to 28,695.66, 39,582.14 and 19,727.59

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Solution

The fourth proportional to 28,695.66, 39,582.14 and 19,727.59 is: 27,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,695.66 : 39,582.14 = 19,727.59 : x
  2. Step 2: Convert to fraction form
    28,695.66/39,582.14 = 19,727.59/x
  3. Step 3: Cross multiply
    28,695.66x = 39,582.14 × 19,727.59
  4. Step 4: Simplify right side
    28,695.66x = 780,860,105.87
  5. Step 5: Solve for x
    x = 780,860,105.87/28,695.66
  6. Step 6: Final answer
    x = 27,211.79

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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.