Home / 31,626.90-43,636.59-18,201.96

Finding the Fourth Proportional to 31,626.90, 43,636.59 and 18,201.96

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Solution

The fourth proportional to 31,626.90, 43,636.59 and 18,201.96 is: 25,113.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,626.90 : 43,636.59 = 18,201.96 : x
  2. Step 2: Convert to fraction form
    31,626.90/43,636.59 = 18,201.96/x
  3. Step 3: Cross multiply
    31,626.90x = 43,636.59 × 18,201.96
  4. Step 4: Simplify right side
    31,626.90x = 794,271,465.72
  5. Step 5: Solve for x
    x = 794,271,465.72/31,626.90
  6. Step 6: Final answer
    x = 25,113.79

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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.