Home / 20,601.95-30,884.58-7,451.39

Finding the Fourth Proportional to 20,601.95, 30,884.58 and 7,451.39

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Solution

The fourth proportional to 20,601.95, 30,884.58 and 7,451.39 is: 11,170.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,601.95 : 30,884.58 = 7,451.39 : x
  2. Step 2: Convert to fraction form
    20,601.95/30,884.58 = 7,451.39/x
  3. Step 3: Cross multiply
    20,601.95x = 30,884.58 × 7,451.39
  4. Step 4: Simplify right side
    20,601.95x = 230,132,896.14
  5. Step 5: Solve for x
    x = 230,132,896.14/20,601.95
  6. Step 6: Final answer
    x = 11,170.45

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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.