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Finding the Fourth Proportional to 35,642.91, 49,183.88 and 21,299.88

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Solution

The fourth proportional to 35,642.91, 49,183.88 and 21,299.88 is: 29,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,642.91 : 49,183.88 = 21,299.88 : x
  2. Step 2: Convert to fraction form
    35,642.91/49,183.88 = 21,299.88/x
  3. Step 3: Cross multiply
    35,642.91x = 49,183.88 × 21,299.88
  4. Step 4: Simplify right side
    35,642.91x = 1,047,610,758.39
  5. Step 5: Solve for x
    x = 1,047,610,758.39/35,642.91
  6. Step 6: Final answer
    x = 29,391.84

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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.