Home / 25,878.24-35,697.96-21,375.36

Finding the Fourth Proportional to 25,878.24, 35,697.96 and 21,375.36

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Solution

The fourth proportional to 25,878.24, 35,697.96 and 21,375.36 is: 29,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.24 : 35,697.96 = 21,375.36 : x
  2. Step 2: Convert to fraction form
    25,878.24/35,697.96 = 21,375.36/x
  3. Step 3: Cross multiply
    25,878.24x = 35,697.96 × 21,375.36
  4. Step 4: Simplify right side
    25,878.24x = 763,056,746.27
  5. Step 5: Solve for x
    x = 763,056,746.27/25,878.24
  6. Step 6: Final answer
    x = 29,486.42

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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.