Home / 39,880.89-59,807.97-20,146.86

Finding the Fourth Proportional to 39,880.89, 59,807.97 and 20,146.86

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Solution

The fourth proportional to 39,880.89, 59,807.97 and 20,146.86 is: 30,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,880.89 : 59,807.97 = 20,146.86 : x
  2. Step 2: Convert to fraction form
    39,880.89/59,807.97 = 20,146.86/x
  3. Step 3: Cross multiply
    39,880.89x = 59,807.97 × 20,146.86
  4. Step 4: Simplify right side
    39,880.89x = 1,204,942,798.47
  5. Step 5: Solve for x
    x = 1,204,942,798.47/39,880.89
  6. Step 6: Final answer
    x = 30,213.54

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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.