Home / 31,609.80-43,622.79-18,181.05

Finding the Fourth Proportional to 31,609.80, 43,622.79 and 18,181.05

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Solution

The fourth proportional to 31,609.80, 43,622.79 and 18,181.05 is: 25,090.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,609.80 : 43,622.79 = 18,181.05 : x
  2. Step 2: Convert to fraction form
    31,609.80/43,622.79 = 18,181.05/x
  3. Step 3: Cross multiply
    31,609.80x = 43,622.79 × 18,181.05
  4. Step 4: Simplify right side
    31,609.80x = 793,108,126.13
  5. Step 5: Solve for x
    x = 793,108,126.13/31,609.80
  6. Step 6: Final answer
    x = 25,090.58

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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.