Home / 25,511.34-38,284.43-8,871.21

Finding the Fourth Proportional to 25,511.34, 38,284.43 and 8,871.21

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Solution

The fourth proportional to 25,511.34, 38,284.43 and 8,871.21 is: 13,312.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,511.34 : 38,284.43 = 8,871.21 : x
  2. Step 2: Convert to fraction form
    25,511.34/38,284.43 = 8,871.21/x
  3. Step 3: Cross multiply
    25,511.34x = 38,284.43 × 8,871.21
  4. Step 4: Simplify right side
    25,511.34x = 339,629,218.26
  5. Step 5: Solve for x
    x = 339,629,218.26/25,511.34
  6. Step 6: Final answer
    x = 13,312.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.