Home / 21,670.76-29,907.42-12,241.10

Finding the Fourth Proportional to 21,670.76, 29,907.42 and 12,241.10

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Solution

The fourth proportional to 21,670.76, 29,907.42 and 12,241.10 is: 16,893.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.76 : 29,907.42 = 12,241.10 : x
  2. Step 2: Convert to fraction form
    21,670.76/29,907.42 = 12,241.10/x
  3. Step 3: Cross multiply
    21,670.76x = 29,907.42 × 12,241.10
  4. Step 4: Simplify right side
    21,670.76x = 366,099,718.96
  5. Step 5: Solve for x
    x = 366,099,718.96/21,670.76
  6. Step 6: Final answer
    x = 16,893.72

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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.