Home / 27,379.47-37,783.56-15,442.73

Finding the Fourth Proportional to 27,379.47, 37,783.56 and 15,442.73

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Solution

The fourth proportional to 27,379.47, 37,783.56 and 15,442.73 is: 21,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.47 : 37,783.56 = 15,442.73 : x
  2. Step 2: Convert to fraction form
    27,379.47/37,783.56 = 15,442.73/x
  3. Step 3: Cross multiply
    27,379.47x = 37,783.56 × 15,442.73
  4. Step 4: Simplify right side
    27,379.47x = 583,481,315.52
  5. Step 5: Solve for x
    x = 583,481,315.52/27,379.47
  6. Step 6: Final answer
    x = 21,310.91

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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.