Home / 39,188.68-58,790.34-12,911.92

Finding the Fourth Proportional to 39,188.68, 58,790.34 and 12,911.92

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Solution

The fourth proportional to 39,188.68, 58,790.34 and 12,911.92 is: 19,370.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,188.68 : 58,790.34 = 12,911.92 : x
  2. Step 2: Convert to fraction form
    39,188.68/58,790.34 = 12,911.92/x
  3. Step 3: Cross multiply
    39,188.68x = 58,790.34 × 12,911.92
  4. Step 4: Simplify right side
    39,188.68x = 759,096,166.85
  5. Step 5: Solve for x
    x = 759,096,166.85/39,188.68
  6. Step 6: Final answer
    x = 19,370.29

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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.