Home / 31,736.05-43,800.36-18,304.63

Finding the Fourth Proportional to 31,736.05, 43,800.36 and 18,304.63

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Solution

The fourth proportional to 31,736.05, 43,800.36 and 18,304.63 is: 25,263.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,736.05 : 43,800.36 = 18,304.63 : x
  2. Step 2: Convert to fraction form
    31,736.05/43,800.36 = 18,304.63/x
  3. Step 3: Cross multiply
    31,736.05x = 43,800.36 × 18,304.63
  4. Step 4: Simplify right side
    31,736.05x = 801,749,383.67
  5. Step 5: Solve for x
    x = 801,749,383.67/31,736.05
  6. Step 6: Final answer
    x = 25,263.05

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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.