Home / 20,635.16-30,986.58-19,583.42

Finding the Fourth Proportional to 20,635.16, 30,986.58 and 19,583.42

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Solution

The fourth proportional to 20,635.16, 30,986.58 and 19,583.42 is: 29,407.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,635.16 : 30,986.58 = 19,583.42 : x
  2. Step 2: Convert to fraction form
    20,635.16/30,986.58 = 19,583.42/x
  3. Step 3: Cross multiply
    20,635.16x = 30,986.58 × 19,583.42
  4. Step 4: Simplify right side
    20,635.16x = 606,823,210.50
  5. Step 5: Solve for x
    x = 606,823,210.50/20,635.16
  6. Step 6: Final answer
    x = 29,407.25

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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.