Home / 30,639.14-45,962.62-10,919.69

Finding the Fourth Proportional to 30,639.14, 45,962.62 and 10,919.69

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Solution

The fourth proportional to 30,639.14, 45,962.62 and 10,919.69 is: 16,380.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,639.14 : 45,962.62 = 10,919.69 : x
  2. Step 2: Convert to fraction form
    30,639.14/45,962.62 = 10,919.69/x
  3. Step 3: Cross multiply
    30,639.14x = 45,962.62 × 10,919.69
  4. Step 4: Simplify right side
    30,639.14x = 501,897,561.99
  5. Step 5: Solve for x
    x = 501,897,561.99/30,639.14
  6. Step 6: Final answer
    x = 16,380.93

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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.