Home / 39,042.78-58,559.31-12,745.32

Finding the Fourth Proportional to 39,042.78, 58,559.31 and 12,745.32

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Solution

The fourth proportional to 39,042.78, 58,559.31 and 12,745.32 is: 19,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,042.78 : 58,559.31 = 12,745.32 : x
  2. Step 2: Convert to fraction form
    39,042.78/58,559.31 = 12,745.32/x
  3. Step 3: Cross multiply
    39,042.78x = 58,559.31 × 12,745.32
  4. Step 4: Simplify right side
    39,042.78x = 746,357,144.93
  5. Step 5: Solve for x
    x = 746,357,144.93/39,042.78
  6. Step 6: Final answer
    x = 19,116.39

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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.