Home / 28,022.40-42,033.60-10,491.30

Finding the Fourth Proportional to 28,022.40, 42,033.60 and 10,491.30

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Solution

The fourth proportional to 28,022.40, 42,033.60 and 10,491.30 is: 15,736.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,022.40 : 42,033.60 = 10,491.30 : x
  2. Step 2: Convert to fraction form
    28,022.40/42,033.60 = 10,491.30/x
  3. Step 3: Cross multiply
    28,022.40x = 42,033.60 × 10,491.30
  4. Step 4: Simplify right side
    28,022.40x = 440,987,107.68
  5. Step 5: Solve for x
    x = 440,987,107.68/28,022.40
  6. Step 6: Final answer
    x = 15,736.95

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1.5x scale

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.