Home / 30,254.91-41,745.80-18,319.36

Finding the Fourth Proportional to 30,254.91, 41,745.80 and 18,319.36

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Solution

The fourth proportional to 30,254.91, 41,745.80 and 18,319.36 is: 25,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,254.91 : 41,745.80 = 18,319.36 : x
  2. Step 2: Convert to fraction form
    30,254.91/41,745.80 = 18,319.36/x
  3. Step 3: Cross multiply
    30,254.91x = 41,745.80 × 18,319.36
  4. Step 4: Simplify right side
    30,254.91x = 764,756,338.69
  5. Step 5: Solve for x
    x = 764,756,338.69/30,254.91
  6. Step 6: Final answer
    x = 25,277.10

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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.