Home / 25,803.80-35,630.84-19,419.36

Finding the Fourth Proportional to 25,803.80, 35,630.84 and 19,419.36

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Solution

The fourth proportional to 25,803.80, 35,630.84 and 19,419.36 is: 26,814.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,803.80 : 35,630.84 = 19,419.36 : x
  2. Step 2: Convert to fraction form
    25,803.80/35,630.84 = 19,419.36/x
  3. Step 3: Cross multiply
    25,803.80x = 35,630.84 × 19,419.36
  4. Step 4: Simplify right side
    25,803.80x = 691,928,109.06
  5. Step 5: Solve for x
    x = 691,928,109.06/25,803.80
  6. Step 6: Final answer
    x = 26,814.97

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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.