Home / 25,698.72-35,465.40-20,100

Finding the Fourth Proportional to 25,698.72, 35,465.40 and 20,100

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Solution

The fourth proportional to 25,698.72, 35,465.40 and 20,100 is: 27,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.72 : 35,465.40 = 20,100 : x
  2. Step 2: Convert to fraction form
    25,698.72/35,465.40 = 20,100/x
  3. Step 3: Cross multiply
    25,698.72x = 35,465.40 × 20,100
  4. Step 4: Simplify right side
    25,698.72x = 712,854,540
  5. Step 5: Solve for x
    x = 712,854,540/25,698.72
  6. Step 6: Final answer
    x = 27,738.91

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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.