Home / 28,851-39,821.70-16,283.04

Finding the Fourth Proportional to 28,851, 39,821.70 and 16,283.04

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Solution

The fourth proportional to 28,851, 39,821.70 and 16,283.04 is: 22,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851 : 39,821.70 = 16,283.04 : x
  2. Step 2: Convert to fraction form
    28,851/39,821.70 = 16,283.04/x
  3. Step 3: Cross multiply
    28,851x = 39,821.70 × 16,283.04
  4. Step 4: Simplify right side
    28,851x = 648,418,333.97
  5. Step 5: Solve for x
    x = 648,418,333.97/28,851
  6. Step 6: Final answer
    x = 22,474.73

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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.