Home / 30,456.32-45,563.52-19,172.48

Finding the Fourth Proportional to 30,456.32, 45,563.52 and 19,172.48

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Solution

The fourth proportional to 30,456.32, 45,563.52 and 19,172.48 is: 28,682.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.32 : 45,563.52 = 19,172.48 : x
  2. Step 2: Convert to fraction form
    30,456.32/45,563.52 = 19,172.48/x
  3. Step 3: Cross multiply
    30,456.32x = 45,563.52 × 19,172.48
  4. Step 4: Simplify right side
    30,456.32x = 873,565,675.93
  5. Step 5: Solve for x
    x = 873,565,675.93/30,456.32
  6. Step 6: Final answer
    x = 28,682.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.