Home / 57,435.18-86,153.22-20,021.99

Finding the Fourth Proportional to 57,435.18, 86,153.22 and 20,021.99

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Solution

The fourth proportional to 57,435.18, 86,153.22 and 20,021.99 is: 30,033.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,435.18 : 86,153.22 = 20,021.99 : x
  2. Step 2: Convert to fraction form
    57,435.18/86,153.22 = 20,021.99/x
  3. Step 3: Cross multiply
    57,435.18x = 86,153.22 × 20,021.99
  4. Step 4: Simplify right side
    57,435.18x = 1,724,958,478.54
  5. Step 5: Solve for x
    x = 1,724,958,478.54/57,435.18
  6. Step 6: Final answer
    x = 30,033.14

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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.