Home / 31,576.96-43,574.52-18,146.08

Finding the Fourth Proportional to 31,576.96, 43,574.52 and 18,146.08

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Solution

The fourth proportional to 31,576.96, 43,574.52 and 18,146.08 is: 25,040.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,576.96 : 43,574.52 = 18,146.08 : x
  2. Step 2: Convert to fraction form
    31,576.96/43,574.52 = 18,146.08/x
  3. Step 3: Cross multiply
    31,576.96x = 43,574.52 × 18,146.08
  4. Step 4: Simplify right side
    31,576.96x = 790,706,725.88
  5. Step 5: Solve for x
    x = 790,706,725.88/31,576.96
  6. Step 6: Final answer
    x = 25,040.62

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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.