Home / 31,684.59-43,735.67-18,261.20

Finding the Fourth Proportional to 31,684.59, 43,735.67 and 18,261.20

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Solution

The fourth proportional to 31,684.59, 43,735.67 and 18,261.20 is: 25,206.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.59 : 43,735.67 = 18,261.20 : x
  2. Step 2: Convert to fraction form
    31,684.59/43,735.67 = 18,261.20/x
  3. Step 3: Cross multiply
    31,684.59x = 43,735.67 × 18,261.20
  4. Step 4: Simplify right side
    31,684.59x = 798,665,507.02
  5. Step 5: Solve for x
    x = 798,665,507.02/31,684.59
  6. Step 6: Final answer
    x = 25,206.75

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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.