Home / 39,085.76-58,622.97-12,791.54

Finding the Fourth Proportional to 39,085.76, 58,622.97 and 12,791.54

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Solution

The fourth proportional to 39,085.76, 58,622.97 and 12,791.54 is: 19,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,085.76 : 58,622.97 = 12,791.54 : x
  2. Step 2: Convert to fraction form
    39,085.76/58,622.97 = 12,791.54/x
  3. Step 3: Cross multiply
    39,085.76x = 58,622.97 × 12,791.54
  4. Step 4: Simplify right side
    39,085.76x = 749,878,065.67
  5. Step 5: Solve for x
    x = 749,878,065.67/39,085.76
  6. Step 6: Final answer
    x = 19,185.45

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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.