Home / 31,544.34-43,536.20-18,969.09

Finding the Fourth Proportional to 31,544.34, 43,536.20 and 18,969.09

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Solution

The fourth proportional to 31,544.34, 43,536.20 and 18,969.09 is: 26,180.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,544.34 : 43,536.20 = 18,969.09 : x
  2. Step 2: Convert to fraction form
    31,544.34/43,536.20 = 18,969.09/x
  3. Step 3: Cross multiply
    31,544.34x = 43,536.20 × 18,969.09
  4. Step 4: Simplify right side
    31,544.34x = 825,842,001.21
  5. Step 5: Solve for x
    x = 825,842,001.21/31,544.34
  6. Step 6: Final answer
    x = 26,180.35

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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.