Home / 39,585.51-54,626.06-21,680.60

Finding the Fourth Proportional to 39,585.51, 54,626.06 and 21,680.60

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Solution

The fourth proportional to 39,585.51, 54,626.06 and 21,680.60 is: 29,918.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.51 : 54,626.06 = 21,680.60 : x
  2. Step 2: Convert to fraction form
    39,585.51/54,626.06 = 21,680.60/x
  3. Step 3: Cross multiply
    39,585.51x = 54,626.06 × 21,680.60
  4. Step 4: Simplify right side
    39,585.51x = 1,184,325,537.51
  5. Step 5: Solve for x
    x = 1,184,325,537.51/39,585.51
  6. Step 6: Final answer
    x = 29,918.16

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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.