Home / 20,824.93-31,237.41-5,242.56

Finding the Fourth Proportional to 20,824.93, 31,237.41 and 5,242.56

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Solution

The fourth proportional to 20,824.93, 31,237.41 and 5,242.56 is: 7,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824.93 : 31,237.41 = 5,242.56 : x
  2. Step 2: Convert to fraction form
    20,824.93/31,237.41 = 5,242.56/x
  3. Step 3: Cross multiply
    20,824.93x = 31,237.41 × 5,242.56
  4. Step 4: Simplify right side
    20,824.93x = 163,763,996.17
  5. Step 5: Solve for x
    x = 163,763,996.17/20,824.93
  6. Step 6: Final answer
    x = 7,863.84

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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.