Home / 39,911.67-55,081.80-22,918.14

Finding the Fourth Proportional to 39,911.67, 55,081.80 and 22,918.14

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Solution

The fourth proportional to 39,911.67, 55,081.80 and 22,918.14 is: 31,629.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,911.67 : 55,081.80 = 22,918.14 : x
  2. Step 2: Convert to fraction form
    39,911.67/55,081.80 = 22,918.14/x
  3. Step 3: Cross multiply
    39,911.67x = 55,081.80 × 22,918.14
  4. Step 4: Simplify right side
    39,911.67x = 1,262,372,403.85
  5. Step 5: Solve for x
    x = 1,262,372,403.85/39,911.67
  6. Step 6: Final answer
    x = 31,629.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.