Home / 31,851-47,825.82-17,088.75

Finding the Fourth Proportional to 31,851, 47,825.82 and 17,088.75

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Solution

The fourth proportional to 31,851, 47,825.82 and 17,088.75 is: 25,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,851 : 47,825.82 = 17,088.75 : x
  2. Step 2: Convert to fraction form
    31,851/47,825.82 = 17,088.75/x
  3. Step 3: Cross multiply
    31,851x = 47,825.82 × 17,088.75
  4. Step 4: Simplify right side
    31,851x = 817,283,481.53
  5. Step 5: Solve for x
    x = 817,283,481.53/31,851
  6. Step 6: Final answer
    x = 25,659.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.