Home / 28,367.87-42,525.35-9,635.09

Finding the Fourth Proportional to 28,367.87, 42,525.35 and 9,635.09

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Solution

The fourth proportional to 28,367.87, 42,525.35 and 9,635.09 is: 14,443.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,367.87 : 42,525.35 = 9,635.09 : x
  2. Step 2: Convert to fraction form
    28,367.87/42,525.35 = 9,635.09/x
  3. Step 3: Cross multiply
    28,367.87x = 42,525.35 × 9,635.09
  4. Step 4: Simplify right side
    28,367.87x = 409,735,313.73
  5. Step 5: Solve for x
    x = 409,735,313.73/28,367.87
  6. Step 6: Final answer
    x = 14,443.64

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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.