Home / 28,267.44-39,007.54-15,691.38

Finding the Fourth Proportional to 28,267.44, 39,007.54 and 15,691.38

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Solution

The fourth proportional to 28,267.44, 39,007.54 and 15,691.38 is: 21,653.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,267.44 : 39,007.54 = 15,691.38 : x
  2. Step 2: Convert to fraction form
    28,267.44/39,007.54 = 15,691.38/x
  3. Step 3: Cross multiply
    28,267.44x = 39,007.54 × 15,691.38
  4. Step 4: Simplify right side
    28,267.44x = 612,081,859.51
  5. Step 5: Solve for x
    x = 612,081,859.51/28,267.44
  6. Step 6: Final answer
    x = 21,653.25

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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.