Home / 47,561.72-71,317.85-20,896.79

Finding the Fourth Proportional to 47,561.72, 71,317.85 and 20,896.79

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Solution

The fourth proportional to 47,561.72, 71,317.85 and 20,896.79 is: 31,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,561.72 : 71,317.85 = 20,896.79 : x
  2. Step 2: Convert to fraction form
    47,561.72/71,317.85 = 20,896.79/x
  3. Step 3: Cross multiply
    47,561.72x = 71,317.85 × 20,896.79
  4. Step 4: Simplify right side
    47,561.72x = 1,490,313,673.63
  5. Step 5: Solve for x
    x = 1,490,313,673.63/47,561.72
  6. Step 6: Final answer
    x = 31,334.31

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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.