Home / 27,738.36-38,282.49-15,805.98

Finding the Fourth Proportional to 27,738.36, 38,282.49 and 15,805.98

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Solution

The fourth proportional to 27,738.36, 38,282.49 and 15,805.98 is: 21,814.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.36 : 38,282.49 = 15,805.98 : x
  2. Step 2: Convert to fraction form
    27,738.36/38,282.49 = 15,805.98/x
  3. Step 3: Cross multiply
    27,738.36x = 38,282.49 × 15,805.98
  4. Step 4: Simplify right side
    27,738.36x = 605,092,271.29
  5. Step 5: Solve for x
    x = 605,092,271.29/27,738.36
  6. Step 6: Final answer
    x = 21,814.28

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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.