Home / 23,900.78-32,979.87-13,288.37

Finding the Fourth Proportional to 23,900.78, 32,979.87 and 13,288.37

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Solution

The fourth proportional to 23,900.78, 32,979.87 and 13,288.37 is: 18,336.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,900.78 : 32,979.87 = 13,288.37 : x
  2. Step 2: Convert to fraction form
    23,900.78/32,979.87 = 13,288.37/x
  3. Step 3: Cross multiply
    23,900.78x = 32,979.87 × 13,288.37
  4. Step 4: Simplify right side
    23,900.78x = 438,248,550.21
  5. Step 5: Solve for x
    x = 438,248,550.21/23,900.78
  6. Step 6: Final answer
    x = 18,336.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.