Home / 20,537.37-30,788.24-9,992.72

Finding the Fourth Proportional to 20,537.37, 30,788.24 and 9,992.72

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Solution

The fourth proportional to 20,537.37, 30,788.24 and 9,992.72 is: 14,980.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537.37 : 30,788.24 = 9,992.72 : x
  2. Step 2: Convert to fraction form
    20,537.37/30,788.24 = 9,992.72/x
  3. Step 3: Cross multiply
    20,537.37x = 30,788.24 × 9,992.72
  4. Step 4: Simplify right side
    20,537.37x = 307,658,288.62
  5. Step 5: Solve for x
    x = 307,658,288.62/20,537.37
  6. Step 6: Final answer
    x = 14,980.41

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1.5x scale

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.