Home / 20,583.74-30,868.29-8,890.58

Finding the Fourth Proportional to 20,583.74, 30,868.29 and 8,890.58

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Solution

The fourth proportional to 20,583.74, 30,868.29 and 8,890.58 is: 13,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.74 : 30,868.29 = 8,890.58 : x
  2. Step 2: Convert to fraction form
    20,583.74/30,868.29 = 8,890.58/x
  3. Step 3: Cross multiply
    20,583.74x = 30,868.29 × 8,890.58
  4. Step 4: Simplify right side
    20,583.74x = 274,436,847.37
  5. Step 5: Solve for x
    x = 274,436,847.37/20,583.74
  6. Step 6: Final answer
    x = 13,332.70

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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.