Home / 47,830.37-71,752.23-21,174.28

Finding the Fourth Proportional to 47,830.37, 71,752.23 and 21,174.28

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Solution

The fourth proportional to 47,830.37, 71,752.23 and 21,174.28 is: 31,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,830.37 : 71,752.23 = 21,174.28 : x
  2. Step 2: Convert to fraction form
    47,830.37/71,752.23 = 21,174.28/x
  3. Step 3: Cross multiply
    47,830.37x = 71,752.23 × 21,174.28
  4. Step 4: Simplify right side
    47,830.37x = 1,519,301,629.26
  5. Step 5: Solve for x
    x = 1,519,301,629.26/47,830.37
  6. Step 6: Final answer
    x = 31,764.37

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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.