Home / 31,261.43-43,133.87-18,508.28

Finding the Fourth Proportional to 31,261.43, 43,133.87 and 18,508.28

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Solution

The fourth proportional to 31,261.43, 43,133.87 and 18,508.28 is: 25,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,261.43 : 43,133.87 = 18,508.28 : x
  2. Step 2: Convert to fraction form
    31,261.43/43,133.87 = 18,508.28/x
  3. Step 3: Cross multiply
    31,261.43x = 43,133.87 × 18,508.28
  4. Step 4: Simplify right side
    31,261.43x = 798,333,527.77
  5. Step 5: Solve for x
    x = 798,333,527.77/31,261.43
  6. Step 6: Final answer
    x = 25,537.34

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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.