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Finding the Fourth Proportional to 30,441.69, 45,631.22 and 14,622.98

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Solution

The fourth proportional to 30,441.69, 45,631.22 and 14,622.98 is: 21,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,441.69 : 45,631.22 = 14,622.98 : x
  2. Step 2: Convert to fraction form
    30,441.69/45,631.22 = 14,622.98/x
  3. Step 3: Cross multiply
    30,441.69x = 45,631.22 × 14,622.98
  4. Step 4: Simplify right side
    30,441.69x = 667,264,116.16
  5. Step 5: Solve for x
    x = 667,264,116.16/30,441.69
  6. Step 6: Final answer
    x = 21,919.42

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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.