Home / 39,110.96-58,660.50-12,815.12

Finding the Fourth Proportional to 39,110.96, 58,660.50 and 12,815.12

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Solution

The fourth proportional to 39,110.96, 58,660.50 and 12,815.12 is: 19,220.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,110.96 : 58,660.50 = 12,815.12 : x
  2. Step 2: Convert to fraction form
    39,110.96/58,660.50 = 12,815.12/x
  3. Step 3: Cross multiply
    39,110.96x = 58,660.50 × 12,815.12
  4. Step 4: Simplify right side
    39,110.96x = 751,741,346.76
  5. Step 5: Solve for x
    x = 751,741,346.76/39,110.96
  6. Step 6: Final answer
    x = 19,220.73

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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.