Home / 28,590.76-39,448.38-21,883.96

Finding the Fourth Proportional to 28,590.76, 39,448.38 and 21,883.96

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Solution

The fourth proportional to 28,590.76, 39,448.38 and 21,883.96 is: 30,194.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.76 : 39,448.38 = 21,883.96 : x
  2. Step 2: Convert to fraction form
    28,590.76/39,448.38 = 21,883.96/x
  3. Step 3: Cross multiply
    28,590.76x = 39,448.38 × 21,883.96
  4. Step 4: Simplify right side
    28,590.76x = 863,286,769.98
  5. Step 5: Solve for x
    x = 863,286,769.98/28,590.76
  6. Step 6: Final answer
    x = 30,194.61

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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.