Home / 30,443.37-45,674.31-21,575.85

Finding the Fourth Proportional to 30,443.37, 45,674.31 and 21,575.85

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Solution

The fourth proportional to 30,443.37, 45,674.31 and 21,575.85 is: 32,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.37 : 45,674.31 = 21,575.85 : x
  2. Step 2: Convert to fraction form
    30,443.37/45,674.31 = 21,575.85/x
  3. Step 3: Cross multiply
    30,443.37x = 45,674.31 × 21,575.85
  4. Step 4: Simplify right side
    30,443.37x = 985,462,061.41
  5. Step 5: Solve for x
    x = 985,462,061.41/30,443.37
  6. Step 6: Final answer
    x = 32,370.33

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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.