Home / 27,380.69-37,786.67-15,443.75

Finding the Fourth Proportional to 27,380.69, 37,786.67 and 15,443.75

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Solution

The fourth proportional to 27,380.69, 37,786.67 and 15,443.75 is: 21,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.69 : 37,786.67 = 15,443.75 : x
  2. Step 2: Convert to fraction form
    27,380.69/37,786.67 = 15,443.75/x
  3. Step 3: Cross multiply
    27,380.69x = 37,786.67 × 15,443.75
  4. Step 4: Simplify right side
    27,380.69x = 583,567,884.81
  5. Step 5: Solve for x
    x = 583,567,884.81/27,380.69
  6. Step 6: Final answer
    x = 21,313.12

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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.