Home / 20,425.89-30,623.74-8,583.17

Finding the Fourth Proportional to 20,425.89, 30,623.74 and 8,583.17

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Solution

The fourth proportional to 20,425.89, 30,623.74 and 8,583.17 is: 12,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.89 : 30,623.74 = 8,583.17 : x
  2. Step 2: Convert to fraction form
    20,425.89/30,623.74 = 8,583.17/x
  3. Step 3: Cross multiply
    20,425.89x = 30,623.74 × 8,583.17
  4. Step 4: Simplify right side
    20,425.89x = 262,848,821.56
  5. Step 5: Solve for x
    x = 262,848,821.56/20,425.89
  6. Step 6: Final answer
    x = 12,868.41

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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.