Home / 20,706.84-31,047.30-13,773.24

Finding the Fourth Proportional to 20,706.84, 31,047.30 and 13,773.24

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Solution

The fourth proportional to 20,706.84, 31,047.30 and 13,773.24 is: 20,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,706.84 : 31,047.30 = 13,773.24 : x
  2. Step 2: Convert to fraction form
    20,706.84/31,047.30 = 13,773.24/x
  3. Step 3: Cross multiply
    20,706.84x = 31,047.30 × 13,773.24
  4. Step 4: Simplify right side
    20,706.84x = 427,621,914.25
  5. Step 5: Solve for x
    x = 427,621,914.25/20,706.84
  6. Step 6: Final answer
    x = 20,651.24

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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.