Home / 25,451.52-35,121.78-14,120.07

Finding the Fourth Proportional to 25,451.52, 35,121.78 and 14,120.07

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Solution

The fourth proportional to 25,451.52, 35,121.78 and 14,120.07 is: 19,484.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.52 : 35,121.78 = 14,120.07 : x
  2. Step 2: Convert to fraction form
    25,451.52/35,121.78 = 14,120.07/x
  3. Step 3: Cross multiply
    25,451.52x = 35,121.78 × 14,120.07
  4. Step 4: Simplify right side
    25,451.52x = 495,921,992.12
  5. Step 5: Solve for x
    x = 495,921,992.12/25,451.52
  6. Step 6: Final answer
    x = 19,484.97

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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.