Home / 35,821.28-49,431.68-19,905.60

Finding the Fourth Proportional to 35,821.28, 49,431.68 and 19,905.60

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Solution

The fourth proportional to 35,821.28, 49,431.68 and 19,905.60 is: 27,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,821.28 : 49,431.68 = 19,905.60 : x
  2. Step 2: Convert to fraction form
    35,821.28/49,431.68 = 19,905.60/x
  3. Step 3: Cross multiply
    35,821.28x = 49,431.68 × 19,905.60
  4. Step 4: Simplify right side
    35,821.28x = 983,967,249.41
  5. Step 5: Solve for x
    x = 983,967,249.41/35,821.28
  6. Step 6: Final answer
    x = 27,468.79

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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.