Home / 21,052.87-29,052.75-12,103.18

Finding the Fourth Proportional to 21,052.87, 29,052.75 and 12,103.18

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Solution

The fourth proportional to 21,052.87, 29,052.75 and 12,103.18 is: 16,702.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.87 : 29,052.75 = 12,103.18 : x
  2. Step 2: Convert to fraction form
    21,052.87/29,052.75 = 12,103.18/x
  3. Step 3: Cross multiply
    21,052.87x = 29,052.75 × 12,103.18
  4. Step 4: Simplify right side
    21,052.87x = 351,630,662.75
  5. Step 5: Solve for x
    x = 351,630,662.75/21,052.87
  6. Step 6: Final answer
    x = 16,702.27

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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.