Home / 39,343.85-59,033.21-20,619.43

Finding the Fourth Proportional to 39,343.85, 59,033.21 and 20,619.43

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Solution

The fourth proportional to 39,343.85, 59,033.21 and 20,619.43 is: 30,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,343.85 : 59,033.21 = 20,619.43 : x
  2. Step 2: Convert to fraction form
    39,343.85/59,033.21 = 20,619.43/x
  3. Step 3: Cross multiply
    39,343.85x = 59,033.21 × 20,619.43
  4. Step 4: Simplify right side
    39,343.85x = 1,217,231,141.27
  5. Step 5: Solve for x
    x = 1,217,231,141.27/39,343.85
  6. Step 6: Final answer
    x = 30,938.28

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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.