Home / 20,525.46-30,739.32-13,106.94

Finding the Fourth Proportional to 20,525.46, 30,739.32 and 13,106.94

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Solution

The fourth proportional to 20,525.46, 30,739.32 and 13,106.94 is: 19,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,525.46 : 30,739.32 = 13,106.94 : x
  2. Step 2: Convert to fraction form
    20,525.46/30,739.32 = 13,106.94/x
  3. Step 3: Cross multiply
    20,525.46x = 30,739.32 × 13,106.94
  4. Step 4: Simplify right side
    20,525.46x = 402,898,422.88
  5. Step 5: Solve for x
    x = 402,898,422.88/20,525.46
  6. Step 6: Final answer
    x = 19,629.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.