Home / 25,884.36-35,698.46-21,870.88

Finding the Fourth Proportional to 25,884.36, 35,698.46 and 21,870.88

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Solution

The fourth proportional to 25,884.36, 35,698.46 and 21,870.88 is: 30,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,884.36 : 35,698.46 = 21,870.88 : x
  2. Step 2: Convert to fraction form
    25,884.36/35,698.46 = 21,870.88/x
  3. Step 3: Cross multiply
    25,884.36x = 35,698.46 × 21,870.88
  4. Step 4: Simplify right side
    25,884.36x = 780,756,536.24
  5. Step 5: Solve for x
    x = 780,756,536.24/25,884.36
  6. Step 6: Final answer
    x = 30,163.25

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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.