Home / 20,020.60-30,103.80-19,583.20

Finding the Fourth Proportional to 20,020.60, 30,103.80 and 19,583.20

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Solution

The fourth proportional to 20,020.60, 30,103.80 and 19,583.20 is: 29,446.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.60 : 30,103.80 = 19,583.20 : x
  2. Step 2: Convert to fraction form
    20,020.60/30,103.80 = 19,583.20/x
  3. Step 3: Cross multiply
    20,020.60x = 30,103.80 × 19,583.20
  4. Step 4: Simplify right side
    20,020.60x = 589,528,736.16
  5. Step 5: Solve for x
    x = 589,528,736.16/20,020.60
  6. Step 6: Final answer
    x = 29,446.11

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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.