Home / 20,704.41-31,056.33-5,122.05

Finding the Fourth Proportional to 20,704.41, 31,056.33 and 5,122.05

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Solution

The fourth proportional to 20,704.41, 31,056.33 and 5,122.05 is: 7,683.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.41 : 31,056.33 = 5,122.05 : x
  2. Step 2: Convert to fraction form
    20,704.41/31,056.33 = 5,122.05/x
  3. Step 3: Cross multiply
    20,704.41x = 31,056.33 × 5,122.05
  4. Step 4: Simplify right side
    20,704.41x = 159,072,075.08
  5. Step 5: Solve for x
    x = 159,072,075.08/20,704.41
  6. Step 6: Final answer
    x = 7,683.00

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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.