Home / 25,511.10-38,269.44-8,656.28

Finding the Fourth Proportional to 25,511.10, 38,269.44 and 8,656.28

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Solution

The fourth proportional to 25,511.10, 38,269.44 and 8,656.28 is: 12,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,511.10 : 38,269.44 = 8,656.28 : x
  2. Step 2: Convert to fraction form
    25,511.10/38,269.44 = 8,656.28/x
  3. Step 3: Cross multiply
    25,511.10x = 38,269.44 × 8,656.28
  4. Step 4: Simplify right side
    25,511.10x = 331,270,796.74
  5. Step 5: Solve for x
    x = 331,270,796.74/25,511.10
  6. Step 6: Final answer
    x = 12,985.36

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1.5x scale

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.