Home / 30,386.72-41,935.92-18,453.44

Finding the Fourth Proportional to 30,386.72, 41,935.92 and 18,453.44

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Solution

The fourth proportional to 30,386.72, 41,935.92 and 18,453.44 is: 25,467.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,386.72 : 41,935.92 = 18,453.44 : x
  2. Step 2: Convert to fraction form
    30,386.72/41,935.92 = 18,453.44/x
  3. Step 3: Cross multiply
    30,386.72x = 41,935.92 × 18,453.44
  4. Step 4: Simplify right side
    30,386.72x = 773,861,983.56
  5. Step 5: Solve for x
    x = 773,861,983.56/30,386.72
  6. Step 6: Final answer
    x = 25,467.11

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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.