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Finding the Fourth Proportional to 28,755.53, 43,120.97 and 10,030

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Solution

The fourth proportional to 28,755.53, 43,120.97 and 10,030 is: 15,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.53 : 43,120.97 = 10,030 : x
  2. Step 2: Convert to fraction form
    28,755.53/43,120.97 = 10,030/x
  3. Step 3: Cross multiply
    28,755.53x = 43,120.97 × 10,030
  4. Step 4: Simplify right side
    28,755.53x = 432,503,329.10
  5. Step 5: Solve for x
    x = 432,503,329.10/28,755.53
  6. Step 6: Final answer
    x = 15,040.70

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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.