Home / 31,578.24-43,576.44-18,146.42

Finding the Fourth Proportional to 31,578.24, 43,576.44 and 18,146.42

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Solution

The fourth proportional to 31,578.24, 43,576.44 and 18,146.42 is: 25,041.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,578.24 : 43,576.44 = 18,146.42 : x
  2. Step 2: Convert to fraction form
    31,578.24/43,576.44 = 18,146.42/x
  3. Step 3: Cross multiply
    31,578.24x = 43,576.44 × 18,146.42
  4. Step 4: Simplify right side
    31,578.24x = 790,756,382.34
  5. Step 5: Solve for x
    x = 790,756,382.34/31,578.24
  6. Step 6: Final answer
    x = 25,041.18

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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.