Home / 25,184.80-34,739.71-18,120.79

Finding the Fourth Proportional to 25,184.80, 34,739.71 and 18,120.79

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Solution

The fourth proportional to 25,184.80, 34,739.71 and 18,120.79 is: 24,995.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,184.80 : 34,739.71 = 18,120.79 : x
  2. Step 2: Convert to fraction form
    25,184.80/34,739.71 = 18,120.79/x
  3. Step 3: Cross multiply
    25,184.80x = 34,739.71 × 18,120.79
  4. Step 4: Simplify right side
    25,184.80x = 629,510,989.57
  5. Step 5: Solve for x
    x = 629,510,989.57/25,184.80
  6. Step 6: Final answer
    x = 24,995.67

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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.