Home / 39,583.90-54,626.08-21,680.56

Finding the Fourth Proportional to 39,583.90, 54,626.08 and 21,680.56

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Solution

The fourth proportional to 39,583.90, 54,626.08 and 21,680.56 is: 29,919.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,583.90 : 54,626.08 = 21,680.56 : x
  2. Step 2: Convert to fraction form
    39,583.90/54,626.08 = 21,680.56/x
  3. Step 3: Cross multiply
    39,583.90x = 54,626.08 × 21,680.56
  4. Step 4: Simplify right side
    39,583.90x = 1,184,324,005.00
  5. Step 5: Solve for x
    x = 1,184,324,005.00/39,583.90
  6. Step 6: Final answer
    x = 29,919.34

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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.