Home / 37,728.36-52,069.68-21,816.72

Finding the Fourth Proportional to 37,728.36, 52,069.68 and 21,816.72

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Solution

The fourth proportional to 37,728.36, 52,069.68 and 21,816.72 is: 30,109.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,728.36 : 52,069.68 = 21,816.72 : x
  2. Step 2: Convert to fraction form
    37,728.36/52,069.68 = 21,816.72/x
  3. Step 3: Cross multiply
    37,728.36x = 52,069.68 × 21,816.72
  4. Step 4: Simplify right side
    37,728.36x = 1,135,989,629.05
  5. Step 5: Solve for x
    x = 1,135,989,629.05/37,728.36
  6. Step 6: Final answer
    x = 30,109.70

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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.