Home / 30,079.75-41,509.45-16,651

Finding the Fourth Proportional to 30,079.75, 41,509.45 and 16,651

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Solution

The fourth proportional to 30,079.75, 41,509.45 and 16,651 is: 22,978.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.75 : 41,509.45 = 16,651 : x
  2. Step 2: Convert to fraction form
    30,079.75/41,509.45 = 16,651/x
  3. Step 3: Cross multiply
    30,079.75x = 41,509.45 × 16,651
  4. Step 4: Simplify right side
    30,079.75x = 691,173,851.95
  5. Step 5: Solve for x
    x = 691,173,851.95/30,079.75
  6. Step 6: Final answer
    x = 22,978.05

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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.