Home / 27,380.88-37,785.96-15,443.10

Finding the Fourth Proportional to 27,380.88, 37,785.96 and 15,443.10

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Solution

The fourth proportional to 27,380.88, 37,785.96 and 15,443.10 is: 21,311.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,380.88 : 37,785.96 = 15,443.10 : x
  2. Step 2: Convert to fraction form
    27,380.88/37,785.96 = 15,443.10/x
  3. Step 3: Cross multiply
    27,380.88x = 37,785.96 × 15,443.10
  4. Step 4: Simplify right side
    27,380.88x = 583,532,358.88
  5. Step 5: Solve for x
    x = 583,532,358.88/27,380.88
  6. Step 6: Final answer
    x = 21,311.67

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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.