Home / 39,585.22-54,626.13-21,680.37

Finding the Fourth Proportional to 39,585.22, 54,626.13 and 21,680.37

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Solution

The fourth proportional to 39,585.22, 54,626.13 and 21,680.37 is: 29,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,585.22 : 54,626.13 = 21,680.37 : x
  2. Step 2: Convert to fraction form
    39,585.22/54,626.13 = 21,680.37/x
  3. Step 3: Cross multiply
    39,585.22x = 54,626.13 × 21,680.37
  4. Step 4: Simplify right side
    39,585.22x = 1,184,314,710.07
  5. Step 5: Solve for x
    x = 1,184,314,710.07/39,585.22
  6. Step 6: Final answer
    x = 29,918.10

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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.