Home / 19,081.11-28,621.35-5,230.11

Finding the Fourth Proportional to 19,081.11, 28,621.35 and 5,230.11

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Solution

The fourth proportional to 19,081.11, 28,621.35 and 5,230.11 is: 7,845.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.11 : 28,621.35 = 5,230.11 : x
  2. Step 2: Convert to fraction form
    19,081.11/28,621.35 = 5,230.11/x
  3. Step 3: Cross multiply
    19,081.11x = 28,621.35 × 5,230.11
  4. Step 4: Simplify right side
    19,081.11x = 149,692,808.85
  5. Step 5: Solve for x
    x = 149,692,808.85/19,081.11
  6. Step 6: Final answer
    x = 7,845.08

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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.