Home / 25,103.68-34,622.94-21,339.28

Finding the Fourth Proportional to 25,103.68, 34,622.94 and 21,339.28

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Solution

The fourth proportional to 25,103.68, 34,622.94 and 21,339.28 is: 29,431.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,103.68 : 34,622.94 = 21,339.28 : x
  2. Step 2: Convert to fraction form
    25,103.68/34,622.94 = 21,339.28/x
  3. Step 3: Cross multiply
    25,103.68x = 34,622.94 × 21,339.28
  4. Step 4: Simplify right side
    25,103.68x = 738,828,611.08
  5. Step 5: Solve for x
    x = 738,828,611.08/25,103.68
  6. Step 6: Final answer
    x = 29,431.09

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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.