Home / 30,382.09-41,929.65-16,772.80

Finding the Fourth Proportional to 30,382.09, 41,929.65 and 16,772.80

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Solution

The fourth proportional to 30,382.09, 41,929.65 and 16,772.80 is: 23,147.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,382.09 : 41,929.65 = 16,772.80 : x
  2. Step 2: Convert to fraction form
    30,382.09/41,929.65 = 16,772.80/x
  3. Step 3: Cross multiply
    30,382.09x = 41,929.65 × 16,772.80
  4. Step 4: Simplify right side
    30,382.09x = 703,277,486.76
  5. Step 5: Solve for x
    x = 703,277,486.76/30,382.09
  6. Step 6: Final answer
    x = 23,147.77

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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.