Home / 39,632.99-54,696.08-21,728.04

Finding the Fourth Proportional to 39,632.99, 54,696.08 and 21,728.04

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Solution

The fourth proportional to 39,632.99, 54,696.08 and 21,728.04 is: 29,986.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,632.99 : 54,696.08 = 21,728.04 : x
  2. Step 2: Convert to fraction form
    39,632.99/54,696.08 = 21,728.04/x
  3. Step 3: Cross multiply
    39,632.99x = 54,696.08 × 21,728.04
  4. Step 4: Simplify right side
    39,632.99x = 1,188,438,505.44
  5. Step 5: Solve for x
    x = 1,188,438,505.44/39,632.99
  6. Step 6: Final answer
    x = 29,986.10

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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.