Home / 27,379.73-37,783.95-15,443.03

Finding the Fourth Proportional to 27,379.73, 37,783.95 and 15,443.03

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Solution

The fourth proportional to 27,379.73, 37,783.95 and 15,443.03 is: 21,311.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.73 : 37,783.95 = 15,443.03 : x
  2. Step 2: Convert to fraction form
    27,379.73/37,783.95 = 15,443.03/x
  3. Step 3: Cross multiply
    27,379.73x = 37,783.95 × 15,443.03
  4. Step 4: Simplify right side
    27,379.73x = 583,498,484.45
  5. Step 5: Solve for x
    x = 583,498,484.45/27,379.73
  6. Step 6: Final answer
    x = 21,311.33

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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.