Home / 30,384.05-41,929.99-16,772.09

Finding the Fourth Proportional to 30,384.05, 41,929.99 and 16,772.09

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Solution

The fourth proportional to 30,384.05, 41,929.99 and 16,772.09 is: 23,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,384.05 : 41,929.99 = 16,772.09 : x
  2. Step 2: Convert to fraction form
    30,384.05/41,929.99 = 16,772.09/x
  3. Step 3: Cross multiply
    30,384.05x = 41,929.99 × 16,772.09
  4. Step 4: Simplify right side
    30,384.05x = 703,253,550.26
  5. Step 5: Solve for x
    x = 703,253,550.26/30,384.05
  6. Step 6: Final answer
    x = 23,145.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.