Home / 27,965.69-38,592.66-15,390.44

Finding the Fourth Proportional to 27,965.69, 38,592.66 and 15,390.44

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Solution

The fourth proportional to 27,965.69, 38,592.66 and 15,390.44 is: 21,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,965.69 : 38,592.66 = 15,390.44 : x
  2. Step 2: Convert to fraction form
    27,965.69/38,592.66 = 15,390.44/x
  3. Step 3: Cross multiply
    27,965.69x = 38,592.66 × 15,390.44
  4. Step 4: Simplify right side
    27,965.69x = 593,958,018.17
  5. Step 5: Solve for x
    x = 593,958,018.17/27,965.69
  6. Step 6: Final answer
    x = 21,238.81

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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.