Home / 39,198.72-58,807.20-12,903.69

Finding the Fourth Proportional to 39,198.72, 58,807.20 and 12,903.69

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Solution

The fourth proportional to 39,198.72, 58,807.20 and 12,903.69 is: 19,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,198.72 : 58,807.20 = 12,903.69 : x
  2. Step 2: Convert to fraction form
    39,198.72/58,807.20 = 12,903.69/x
  3. Step 3: Cross multiply
    39,198.72x = 58,807.20 × 12,903.69
  4. Step 4: Simplify right side
    39,198.72x = 758,829,878.57
  5. Step 5: Solve for x
    x = 758,829,878.57/39,198.72
  6. Step 6: Final answer
    x = 19,358.54

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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.