Home / 28,653.21-42,979.83-9,933.25

Finding the Fourth Proportional to 28,653.21, 42,979.83 and 9,933.25

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Solution

The fourth proportional to 28,653.21, 42,979.83 and 9,933.25 is: 14,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.21 : 42,979.83 = 9,933.25 : x
  2. Step 2: Convert to fraction form
    28,653.21/42,979.83 = 9,933.25/x
  3. Step 3: Cross multiply
    28,653.21x = 42,979.83 × 9,933.25
  4. Step 4: Simplify right side
    28,653.21x = 426,929,388.11
  5. Step 5: Solve for x
    x = 426,929,388.11/28,653.21
  6. Step 6: Final answer
    x = 14,899.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.