Home / 31,548.31-43,536.58-18,120.43

Finding the Fourth Proportional to 31,548.31, 43,536.58 and 18,120.43

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Solution

The fourth proportional to 31,548.31, 43,536.58 and 18,120.43 is: 25,006.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,548.31 : 43,536.58 = 18,120.43 : x
  2. Step 2: Convert to fraction form
    31,548.31/43,536.58 = 18,120.43/x
  3. Step 3: Cross multiply
    31,548.31x = 43,536.58 × 18,120.43
  4. Step 4: Simplify right side
    31,548.31x = 788,901,242.04
  5. Step 5: Solve for x
    x = 788,901,242.04/31,548.31
  6. Step 6: Final answer
    x = 25,006.14

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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.