Home / 39,172.40-58,766.08-12,884.72

Finding the Fourth Proportional to 39,172.40, 58,766.08 and 12,884.72

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Solution

The fourth proportional to 39,172.40, 58,766.08 and 12,884.72 is: 19,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,172.40 : 58,766.08 = 12,884.72 : x
  2. Step 2: Convert to fraction form
    39,172.40/58,766.08 = 12,884.72/x
  3. Step 3: Cross multiply
    39,172.40x = 58,766.08 × 12,884.72
  4. Step 4: Simplify right side
    39,172.40x = 757,184,486.30
  5. Step 5: Solve for x
    x = 757,184,486.30/39,172.40
  6. Step 6: Final answer
    x = 19,329.54

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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.