Home / 21,314.87-29,414.30-12,241.72

Finding the Fourth Proportional to 21,314.87, 29,414.30 and 12,241.72

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Solution

The fourth proportional to 21,314.87, 29,414.30 and 12,241.72 is: 16,893.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,314.87 : 29,414.30 = 12,241.72 : x
  2. Step 2: Convert to fraction form
    21,314.87/29,414.30 = 12,241.72/x
  3. Step 3: Cross multiply
    21,314.87x = 29,414.30 × 12,241.72
  4. Step 4: Simplify right side
    21,314.87x = 360,081,624.60
  5. Step 5: Solve for x
    x = 360,081,624.60/21,314.87
  6. Step 6: Final answer
    x = 16,893.45

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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.