Home / 28,939.74-43,376.10-13,324.56

Finding the Fourth Proportional to 28,939.74, 43,376.10 and 13,324.56

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Solution

The fourth proportional to 28,939.74, 43,376.10 and 13,324.56 is: 19,971.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.74 : 43,376.10 = 13,324.56 : x
  2. Step 2: Convert to fraction form
    28,939.74/43,376.10 = 13,324.56/x
  3. Step 3: Cross multiply
    28,939.74x = 43,376.10 × 13,324.56
  4. Step 4: Simplify right side
    28,939.74x = 577,967,447.02
  5. Step 5: Solve for x
    x = 577,967,447.02/28,939.74
  6. Step 6: Final answer
    x = 19,971.41

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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.