Home / 25,813.64-35,633.67-21,855.26

Finding the Fourth Proportional to 25,813.64, 35,633.67 and 21,855.26

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Solution

The fourth proportional to 25,813.64, 35,633.67 and 21,855.26 is: 30,169.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,813.64 : 35,633.67 = 21,855.26 : x
  2. Step 2: Convert to fraction form
    25,813.64/35,633.67 = 21,855.26/x
  3. Step 3: Cross multiply
    25,813.64x = 35,633.67 × 21,855.26
  4. Step 4: Simplify right side
    25,813.64x = 778,783,122.60
  5. Step 5: Solve for x
    x = 778,783,122.60/25,813.64
  6. Step 6: Final answer
    x = 30,169.44

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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.