Home / 30,382.57-45,596.90-21,087.73

Finding the Fourth Proportional to 30,382.57, 45,596.90 and 21,087.73

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Solution

The fourth proportional to 30,382.57, 45,596.90 and 21,087.73 is: 31,647.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.57 : 45,596.90 = 21,087.73 : x
  2. Step 2: Convert to fraction form
    30,382.57/45,596.90 = 21,087.73/x
  3. Step 3: Cross multiply
    30,382.57x = 45,596.90 × 21,087.73
  4. Step 4: Simplify right side
    30,382.57x = 961,535,116.04
  5. Step 5: Solve for x
    x = 961,535,116.04/30,382.57
  6. Step 6: Final answer
    x = 31,647.59

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1.5x scale

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.