Home / 47,899.30-71,840.73-12,830.75

Finding the Fourth Proportional to 47,899.30, 71,840.73 and 12,830.75

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Solution

The fourth proportional to 47,899.30, 71,840.73 and 12,830.75 is: 19,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,899.30 : 71,840.73 = 12,830.75 : x
  2. Step 2: Convert to fraction form
    47,899.30/71,840.73 = 12,830.75/x
  3. Step 3: Cross multiply
    47,899.30x = 71,840.73 × 12,830.75
  4. Step 4: Simplify right side
    47,899.30x = 921,770,446.45
  5. Step 5: Solve for x
    x = 921,770,446.45/47,899.30
  6. Step 6: Final answer
    x = 19,243.92

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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.