Home / 27,797.82-38,357.40-15,860.43

Finding the Fourth Proportional to 27,797.82, 38,357.40 and 15,860.43

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Solution

The fourth proportional to 27,797.82, 38,357.40 and 15,860.43 is: 21,885.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,797.82 : 38,357.40 = 15,860.43 : x
  2. Step 2: Convert to fraction form
    27,797.82/38,357.40 = 15,860.43/x
  3. Step 3: Cross multiply
    27,797.82x = 38,357.40 × 15,860.43
  4. Step 4: Simplify right side
    27,797.82x = 608,364,857.68
  5. Step 5: Solve for x
    x = 608,364,857.68/27,797.82
  6. Step 6: Final answer
    x = 21,885.34

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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.