Home / 20,825.84-31,238.49-5,030.75

Finding the Fourth Proportional to 20,825.84, 31,238.49 and 5,030.75

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Solution

The fourth proportional to 20,825.84, 31,238.49 and 5,030.75 is: 7,546.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,825.84 : 31,238.49 = 5,030.75 : x
  2. Step 2: Convert to fraction form
    20,825.84/31,238.49 = 5,030.75/x
  3. Step 3: Cross multiply
    20,825.84x = 31,238.49 × 5,030.75
  4. Step 4: Simplify right side
    20,825.84x = 157,153,033.57
  5. Step 5: Solve for x
    x = 157,153,033.57/20,825.84
  6. Step 6: Final answer
    x = 7,546.06

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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.