Home / 27,378.18-37,782.09-15,441.75

Finding the Fourth Proportional to 27,378.18, 37,782.09 and 15,441.75

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Solution

The fourth proportional to 27,378.18, 37,782.09 and 15,441.75 is: 21,309.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.18 : 37,782.09 = 15,441.75 : x
  2. Step 2: Convert to fraction form
    27,378.18/37,782.09 = 15,441.75/x
  3. Step 3: Cross multiply
    27,378.18x = 37,782.09 × 15,441.75
  4. Step 4: Simplify right side
    27,378.18x = 583,421,588.26
  5. Step 5: Solve for x
    x = 583,421,588.26/27,378.18
  6. Step 6: Final answer
    x = 21,309.73

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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.