Home / 18,511.22-25,528.59-15,832.49

Finding the Fourth Proportional to 18,511.22, 25,528.59 and 15,832.49

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Solution

The fourth proportional to 18,511.22, 25,528.59 and 15,832.49 is: 21,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,511.22 : 25,528.59 = 15,832.49 : x
  2. Step 2: Convert to fraction form
    18,511.22/25,528.59 = 15,832.49/x
  3. Step 3: Cross multiply
    18,511.22x = 25,528.59 × 15,832.49
  4. Step 4: Simplify right side
    18,511.22x = 404,181,018.25
  5. Step 5: Solve for x
    x = 404,181,018.25/18,511.22
  6. Step 6: Final answer
    x = 21,834.39

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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.