Home / 28,530.53-42,814.16-15,391.97

Finding the Fourth Proportional to 28,530.53, 42,814.16 and 15,391.97

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Solution

The fourth proportional to 28,530.53, 42,814.16 and 15,391.97 is: 23,097.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,530.53 : 42,814.16 = 15,391.97 : x
  2. Step 2: Convert to fraction form
    28,530.53/42,814.16 = 15,391.97/x
  3. Step 3: Cross multiply
    28,530.53x = 42,814.16 × 15,391.97
  4. Step 4: Simplify right side
    28,530.53x = 658,994,189.34
  5. Step 5: Solve for x
    x = 658,994,189.34/28,530.53
  6. Step 6: Final answer
    x = 23,097.86

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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.