Home / 39,081.03-53,928-21,850.26

Finding the Fourth Proportional to 39,081.03, 53,928 and 21,850.26

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Solution

The fourth proportional to 39,081.03, 53,928 and 21,850.26 is: 30,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,081.03 : 53,928 = 21,850.26 : x
  2. Step 2: Convert to fraction form
    39,081.03/53,928 = 21,850.26/x
  3. Step 3: Cross multiply
    39,081.03x = 53,928 × 21,850.26
  4. Step 4: Simplify right side
    39,081.03x = 1,178,340,821.28
  5. Step 5: Solve for x
    x = 1,178,340,821.28/39,081.03
  6. Step 6: Final answer
    x = 30,151.22

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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.