Home / 39,986.62-59,987.22-20,006.56

Finding the Fourth Proportional to 39,986.62, 59,987.22 and 20,006.56

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Solution

The fourth proportional to 39,986.62, 59,987.22 and 20,006.56 is: 30,013.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,986.62 : 59,987.22 = 20,006.56 : x
  2. Step 2: Convert to fraction form
    39,986.62/59,987.22 = 20,006.56/x
  3. Step 3: Cross multiply
    39,986.62x = 59,987.22 × 20,006.56
  4. Step 4: Simplify right side
    39,986.62x = 1,200,137,916.16
  5. Step 5: Solve for x
    x = 1,200,137,916.16/39,986.62
  6. Step 6: Final answer
    x = 30,013.49

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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.