Home / 20,675.61-31,013.21-5,093.24

Finding the Fourth Proportional to 20,675.61, 31,013.21 and 5,093.24

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Solution

The fourth proportional to 20,675.61, 31,013.21 and 5,093.24 is: 7,639.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.61 : 31,013.21 = 5,093.24 : x
  2. Step 2: Convert to fraction form
    20,675.61/31,013.21 = 5,093.24/x
  3. Step 3: Cross multiply
    20,675.61x = 31,013.21 × 5,093.24
  4. Step 4: Simplify right side
    20,675.61x = 157,957,579.37
  5. Step 5: Solve for x
    x = 157,957,579.37/20,675.61
  6. Step 6: Final answer
    x = 7,639.80

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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.