Home / 31,684.47-43,735.49-18,261.07

Finding the Fourth Proportional to 31,684.47, 43,735.49 and 18,261.07

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Solution

The fourth proportional to 31,684.47, 43,735.49 and 18,261.07 is: 25,206.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.47 : 43,735.49 = 18,261.07 : x
  2. Step 2: Convert to fraction form
    31,684.47/43,735.49 = 18,261.07/x
  3. Step 3: Cross multiply
    31,684.47x = 43,735.49 × 18,261.07
  4. Step 4: Simplify right side
    31,684.47x = 798,656,890.03
  5. Step 5: Solve for x
    x = 798,656,890.03/31,684.47
  6. Step 6: Final answer
    x = 25,206.58

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1.5x scale

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.