Home / 28,015.26-38,653.38-19,507.82

Finding the Fourth Proportional to 28,015.26, 38,653.38 and 19,507.82

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Solution

The fourth proportional to 28,015.26, 38,653.38 and 19,507.82 is: 26,915.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.26 : 38,653.38 = 19,507.82 : x
  2. Step 2: Convert to fraction form
    28,015.26/38,653.38 = 19,507.82/x
  3. Step 3: Cross multiply
    28,015.26x = 38,653.38 × 19,507.82
  4. Step 4: Simplify right side
    28,015.26x = 754,043,179.43
  5. Step 5: Solve for x
    x = 754,043,179.43/28,015.26
  6. Step 6: Final answer
    x = 26,915.44

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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.