Home / 25,451.36-35,121.70-14,120.74

Finding the Fourth Proportional to 25,451.36, 35,121.70 and 14,120.74

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Solution

The fourth proportional to 25,451.36, 35,121.70 and 14,120.74 is: 19,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.36 : 35,121.70 = 14,120.74 : x
  2. Step 2: Convert to fraction form
    25,451.36/35,121.70 = 14,120.74/x
  3. Step 3: Cross multiply
    25,451.36x = 35,121.70 × 14,120.74
  4. Step 4: Simplify right side
    25,451.36x = 495,944,147.85
  5. Step 5: Solve for x
    x = 495,944,147.85/25,451.36
  6. Step 6: Final answer
    x = 19,485.96

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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.