Home / 30,999.69-42,777.72-16,852.41

Finding the Fourth Proportional to 30,999.69, 42,777.72 and 16,852.41

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Solution

The fourth proportional to 30,999.69, 42,777.72 and 16,852.41 is: 23,255.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,999.69 : 42,777.72 = 16,852.41 : x
  2. Step 2: Convert to fraction form
    30,999.69/42,777.72 = 16,852.41/x
  3. Step 3: Cross multiply
    30,999.69x = 42,777.72 × 16,852.41
  4. Step 4: Simplify right side
    30,999.69x = 720,907,676.31
  5. Step 5: Solve for x
    x = 720,907,676.31/30,999.69
  6. Step 6: Final answer
    x = 23,255.32

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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.