Home / 27,893.53-38,493.07-15,318.28

Finding the Fourth Proportional to 27,893.53, 38,493.07 and 15,318.28

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Solution

The fourth proportional to 27,893.53, 38,493.07 and 15,318.28 is: 21,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,893.53 : 38,493.07 = 15,318.28 : x
  2. Step 2: Convert to fraction form
    27,893.53/38,493.07 = 15,318.28/x
  3. Step 3: Cross multiply
    27,893.53x = 38,493.07 × 15,318.28
  4. Step 4: Simplify right side
    27,893.53x = 589,647,720.31
  5. Step 5: Solve for x
    x = 589,647,720.31/27,893.53
  6. Step 6: Final answer
    x = 21,139.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.