Home / 31,684.81-43,734.77-18,265.03

Finding the Fourth Proportional to 31,684.81, 43,734.77 and 18,265.03

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Solution

The fourth proportional to 31,684.81, 43,734.77 and 18,265.03 is: 25,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.81 : 43,734.77 = 18,265.03 : x
  2. Step 2: Convert to fraction form
    31,684.81/43,734.77 = 18,265.03/x
  3. Step 3: Cross multiply
    31,684.81x = 43,734.77 × 18,265.03
  4. Step 4: Simplify right side
    31,684.81x = 798,816,886.09
  5. Step 5: Solve for x
    x = 798,816,886.09/31,684.81
  6. Step 6: Final answer
    x = 25,211.35

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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.