Home / 19,309.86-28,915.77-16,181.64

Finding the Fourth Proportional to 19,309.86, 28,915.77 and 16,181.64

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Solution

The fourth proportional to 19,309.86, 28,915.77 and 16,181.64 is: 24,231.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.86 : 28,915.77 = 16,181.64 : x
  2. Step 2: Convert to fraction form
    19,309.86/28,915.77 = 16,181.64/x
  3. Step 3: Cross multiply
    19,309.86x = 28,915.77 × 16,181.64
  4. Step 4: Simplify right side
    19,309.86x = 467,904,580.46
  5. Step 5: Solve for x
    x = 467,904,580.46/19,309.86
  6. Step 6: Final answer
    x = 24,231.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.