Home / 31,576.23-43,574.09-18,998.55

Finding the Fourth Proportional to 31,576.23, 43,574.09 and 18,998.55

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Solution

The fourth proportional to 31,576.23, 43,574.09 and 18,998.55 is: 26,217.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,576.23 : 43,574.09 = 18,998.55 : x
  2. Step 2: Convert to fraction form
    31,576.23/43,574.09 = 18,998.55/x
  3. Step 3: Cross multiply
    31,576.23x = 43,574.09 × 18,998.55
  4. Step 4: Simplify right side
    31,576.23x = 827,844,432.58
  5. Step 5: Solve for x
    x = 827,844,432.58/31,576.23
  6. Step 6: Final answer
    x = 26,217.33

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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.