Home / 47,939.24-66,156.31-28,830.03

Finding the Fourth Proportional to 47,939.24, 66,156.31 and 28,830.03

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Solution

The fourth proportional to 47,939.24, 66,156.31 and 28,830.03 is: 39,785.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,939.24 : 66,156.31 = 28,830.03 : x
  2. Step 2: Convert to fraction form
    47,939.24/66,156.31 = 28,830.03/x
  3. Step 3: Cross multiply
    47,939.24x = 66,156.31 × 28,830.03
  4. Step 4: Simplify right side
    47,939.24x = 1,907,288,189.94
  5. Step 5: Solve for x
    x = 1,907,288,189.94/47,939.24
  6. Step 6: Final answer
    x = 39,785.53

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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.