Home / 28,871.78-43,310.50-12,001.30

Finding the Fourth Proportional to 28,871.78, 43,310.50 and 12,001.30

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Solution

The fourth proportional to 28,871.78, 43,310.50 and 12,001.30 is: 18,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.78 : 43,310.50 = 12,001.30 : x
  2. Step 2: Convert to fraction form
    28,871.78/43,310.50 = 12,001.30/x
  3. Step 3: Cross multiply
    28,871.78x = 43,310.50 × 12,001.30
  4. Step 4: Simplify right side
    28,871.78x = 519,782,165.37
  5. Step 5: Solve for x
    x = 519,782,165.37/28,871.78
  6. Step 6: Final answer
    x = 18,003.12

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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.