Home / 31,698.78-43,743.93-17,358.47

Finding the Fourth Proportional to 31,698.78, 43,743.93 and 17,358.47

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Solution

The fourth proportional to 31,698.78, 43,743.93 and 17,358.47 is: 23,954.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,698.78 : 43,743.93 = 17,358.47 : x
  2. Step 2: Convert to fraction form
    31,698.78/43,743.93 = 17,358.47/x
  3. Step 3: Cross multiply
    31,698.78x = 43,743.93 × 17,358.47
  4. Step 4: Simplify right side
    31,698.78x = 759,327,477.87
  5. Step 5: Solve for x
    x = 759,327,477.87/31,698.78
  6. Step 6: Final answer
    x = 23,954.47

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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.