Home / 34,786.64-47,999.70-20,443.56

Finding the Fourth Proportional to 34,786.64, 47,999.70 and 20,443.56

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Solution

The fourth proportional to 34,786.64, 47,999.70 and 20,443.56 is: 28,208.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,786.64 : 47,999.70 = 20,443.56 : x
  2. Step 2: Convert to fraction form
    34,786.64/47,999.70 = 20,443.56/x
  3. Step 3: Cross multiply
    34,786.64x = 47,999.70 × 20,443.56
  4. Step 4: Simplify right side
    34,786.64x = 981,284,746.93
  5. Step 5: Solve for x
    x = 981,284,746.93/34,786.64
  6. Step 6: Final answer
    x = 28,208.67

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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.