Home / 47,231.64-70,830.77-13,942.80

Finding the Fourth Proportional to 47,231.64, 70,830.77 and 13,942.80

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Solution

The fourth proportional to 47,231.64, 70,830.77 and 13,942.80 is: 20,909.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,231.64 : 70,830.77 = 13,942.80 : x
  2. Step 2: Convert to fraction form
    47,231.64/70,830.77 = 13,942.80/x
  3. Step 3: Cross multiply
    47,231.64x = 70,830.77 × 13,942.80
  4. Step 4: Simplify right side
    47,231.64x = 987,579,190.24
  5. Step 5: Solve for x
    x = 987,579,190.24/47,231.64
  6. Step 6: Final answer
    x = 20,909.27

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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.