Home / 21,617.87-32,425.58-7,578.54

Finding the Fourth Proportional to 21,617.87, 32,425.58 and 7,578.54

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Solution

The fourth proportional to 21,617.87, 32,425.58 and 7,578.54 is: 11,367.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617.87 : 32,425.58 = 7,578.54 : x
  2. Step 2: Convert to fraction form
    21,617.87/32,425.58 = 7,578.54/x
  3. Step 3: Cross multiply
    21,617.87x = 32,425.58 × 7,578.54
  4. Step 4: Simplify right side
    21,617.87x = 245,738,574.00
  5. Step 5: Solve for x
    x = 245,738,574.00/21,617.87
  6. Step 6: Final answer
    x = 11,367.38

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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.