Home / 39,847.05-59,807.48-20,139.39

Finding the Fourth Proportional to 39,847.05, 59,807.48 and 20,139.39

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Solution

The fourth proportional to 39,847.05, 59,807.48 and 20,139.39 is: 30,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,847.05 : 59,807.48 = 20,139.39 : x
  2. Step 2: Convert to fraction form
    39,847.05/59,807.48 = 20,139.39/x
  3. Step 3: Cross multiply
    39,847.05x = 59,807.48 × 20,139.39
  4. Step 4: Simplify right side
    39,847.05x = 1,204,486,063.94
  5. Step 5: Solve for x
    x = 1,204,486,063.94/39,847.05
  6. Step 6: Final answer
    x = 30,227.73

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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.