Home / 27,378.34-37,782.06-15,441.64

Finding the Fourth Proportional to 27,378.34, 37,782.06 and 15,441.64

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Solution

The fourth proportional to 27,378.34, 37,782.06 and 15,441.64 is: 21,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.34 : 37,782.06 = 15,441.64 : x
  2. Step 2: Convert to fraction form
    27,378.34/37,782.06 = 15,441.64/x
  3. Step 3: Cross multiply
    27,378.34x = 37,782.06 × 15,441.64
  4. Step 4: Simplify right side
    27,378.34x = 583,416,968.98
  5. Step 5: Solve for x
    x = 583,416,968.98/27,378.34
  6. Step 6: Final answer
    x = 21,309.44

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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.