Home / 28,705.07-39,632.33-25,670.78

Finding the Fourth Proportional to 28,705.07, 39,632.33 and 25,670.78

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Solution

The fourth proportional to 28,705.07, 39,632.33 and 25,670.78 is: 35,442.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,705.07 : 39,632.33 = 25,670.78 : x
  2. Step 2: Convert to fraction form
    28,705.07/39,632.33 = 25,670.78/x
  3. Step 3: Cross multiply
    28,705.07x = 39,632.33 × 25,670.78
  4. Step 4: Simplify right side
    28,705.07x = 1,017,392,497.80
  5. Step 5: Solve for x
    x = 1,017,392,497.80/28,705.07
  6. Step 6: Final answer
    x = 35,442.96

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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.