Home / 27,777.58-38,293.14-19,805.98

Finding the Fourth Proportional to 27,777.58, 38,293.14 and 19,805.98

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Solution

The fourth proportional to 27,777.58, 38,293.14 and 19,805.98 is: 27,303.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,777.58 : 38,293.14 = 19,805.98 : x
  2. Step 2: Convert to fraction form
    27,777.58/38,293.14 = 19,805.98/x
  3. Step 3: Cross multiply
    27,777.58x = 38,293.14 × 19,805.98
  4. Step 4: Simplify right side
    27,777.58x = 758,433,164.98
  5. Step 5: Solve for x
    x = 758,433,164.98/27,777.58
  6. Step 6: Final answer
    x = 27,303.79

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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.