Home / 20,558.96-30,841.08-7,412.72

Finding the Fourth Proportional to 20,558.96, 30,841.08 and 7,412.72

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Solution

The fourth proportional to 20,558.96, 30,841.08 and 7,412.72 is: 11,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.96 : 30,841.08 = 7,412.72 : x
  2. Step 2: Convert to fraction form
    20,558.96/30,841.08 = 7,412.72/x
  3. Step 3: Cross multiply
    20,558.96x = 30,841.08 × 7,412.72
  4. Step 4: Simplify right side
    20,558.96x = 228,616,290.54
  5. Step 5: Solve for x
    x = 228,616,290.54/20,558.96
  6. Step 6: Final answer
    x = 11,120.03

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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.