Home / 30,278.25-41,784.63-16,851.90

Finding the Fourth Proportional to 30,278.25, 41,784.63 and 16,851.90

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Solution

The fourth proportional to 30,278.25, 41,784.63 and 16,851.90 is: 23,255.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.25 : 41,784.63 = 16,851.90 : x
  2. Step 2: Convert to fraction form
    30,278.25/41,784.63 = 16,851.90/x
  3. Step 3: Cross multiply
    30,278.25x = 41,784.63 × 16,851.90
  4. Step 4: Simplify right side
    30,278.25x = 704,150,406.30
  5. Step 5: Solve for x
    x = 704,150,406.30/30,278.25
  6. Step 6: Final answer
    x = 23,255.98

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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.