Home / 40,708.87-61,072.07-12,628.36

Finding the Fourth Proportional to 40,708.87, 61,072.07 and 12,628.36

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Solution

The fourth proportional to 40,708.87, 61,072.07 and 12,628.36 is: 18,945.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,708.87 : 61,072.07 = 12,628.36 : x
  2. Step 2: Convert to fraction form
    40,708.87/61,072.07 = 12,628.36/x
  3. Step 3: Cross multiply
    40,708.87x = 61,072.07 × 12,628.36
  4. Step 4: Simplify right side
    40,708.87x = 771,240,085.91
  5. Step 5: Solve for x
    x = 771,240,085.91/40,708.87
  6. Step 6: Final answer
    x = 18,945.26

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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.