Home / 28,874.78-43,315.01-12,004.31

Finding the Fourth Proportional to 28,874.78, 43,315.01 and 12,004.31

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Solution

The fourth proportional to 28,874.78, 43,315.01 and 12,004.31 is: 18,007.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.78 : 43,315.01 = 12,004.31 : x
  2. Step 2: Convert to fraction form
    28,874.78/43,315.01 = 12,004.31/x
  3. Step 3: Cross multiply
    28,874.78x = 43,315.01 × 12,004.31
  4. Step 4: Simplify right side
    28,874.78x = 519,966,531.10
  5. Step 5: Solve for x
    x = 519,966,531.10/28,874.78
  6. Step 6: Final answer
    x = 18,007.64

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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.