Home / 27,378.36-37,782.12-15,441.67

Finding the Fourth Proportional to 27,378.36, 37,782.12 and 15,441.67

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Solution

The fourth proportional to 27,378.36, 37,782.12 and 15,441.67 is: 21,309.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.36 : 37,782.12 = 15,441.67 : x
  2. Step 2: Convert to fraction form
    27,378.36/37,782.12 = 15,441.67/x
  3. Step 3: Cross multiply
    27,378.36x = 37,782.12 × 15,441.67
  4. Step 4: Simplify right side
    27,378.36x = 583,418,951.73
  5. Step 5: Solve for x
    x = 583,418,951.73/27,378.36
  6. Step 6: Final answer
    x = 21,309.49

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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.