Home / 30,984.96-42,759.48-16,837.86

Finding the Fourth Proportional to 30,984.96, 42,759.48 and 16,837.86

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Solution

The fourth proportional to 30,984.96, 42,759.48 and 16,837.86 is: 23,236.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,984.96 : 42,759.48 = 16,837.86 : x
  2. Step 2: Convert to fraction form
    30,984.96/42,759.48 = 16,837.86/x
  3. Step 3: Cross multiply
    30,984.96x = 42,759.48 × 16,837.86
  4. Step 4: Simplify right side
    30,984.96x = 719,978,137.91
  5. Step 5: Solve for x
    x = 719,978,137.91/30,984.96
  6. Step 6: Final answer
    x = 23,236.37

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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.