Home / 19,941.40-29,912.10-16,660.90

Finding the Fourth Proportional to 19,941.40, 29,912.10 and 16,660.90

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Solution

The fourth proportional to 19,941.40, 29,912.10 and 16,660.90 is: 24,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,941.40 : 29,912.10 = 16,660.90 : x
  2. Step 2: Convert to fraction form
    19,941.40/29,912.10 = 16,660.90/x
  3. Step 3: Cross multiply
    19,941.40x = 29,912.10 × 16,660.90
  4. Step 4: Simplify right side
    19,941.40x = 498,362,506.89
  5. Step 5: Solve for x
    x = 498,362,506.89/19,941.40
  6. Step 6: Final answer
    x = 24,991.35

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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.