Home / 31,287.78-46,884.56-18,794.07

Finding the Fourth Proportional to 31,287.78, 46,884.56 and 18,794.07

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Solution

The fourth proportional to 31,287.78, 46,884.56 and 18,794.07 is: 28,162.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.78 : 46,884.56 = 18,794.07 : x
  2. Step 2: Convert to fraction form
    31,287.78/46,884.56 = 18,794.07/x
  3. Step 3: Cross multiply
    31,287.78x = 46,884.56 × 18,794.07
  4. Step 4: Simplify right side
    31,287.78x = 881,151,608.59
  5. Step 5: Solve for x
    x = 881,151,608.59/31,287.78
  6. Step 6: Final answer
    x = 28,162.80

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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.