Home / 38,928.96-58,383.72-12,641.22

Finding the Fourth Proportional to 38,928.96, 58,383.72 and 12,641.22

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Solution

The fourth proportional to 38,928.96, 58,383.72 and 12,641.22 is: 18,958.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,928.96 : 58,383.72 = 12,641.22 : x
  2. Step 2: Convert to fraction form
    38,928.96/58,383.72 = 12,641.22/x
  3. Step 3: Cross multiply
    38,928.96x = 58,383.72 × 12,641.22
  4. Step 4: Simplify right side
    38,928.96x = 738,041,448.94
  5. Step 5: Solve for x
    x = 738,041,448.94/38,928.96
  6. Step 6: Final answer
    x = 18,958.67

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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.