Home / 19,933.20-29,863.80-11,606.40

Finding the Fourth Proportional to 19,933.20, 29,863.80 and 11,606.40

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Solution

The fourth proportional to 19,933.20, 29,863.80 and 11,606.40 is: 17,388.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,933.20 : 29,863.80 = 11,606.40 : x
  2. Step 2: Convert to fraction form
    19,933.20/29,863.80 = 11,606.40/x
  3. Step 3: Cross multiply
    19,933.20x = 29,863.80 × 11,606.40
  4. Step 4: Simplify right side
    19,933.20x = 346,611,208.32
  5. Step 5: Solve for x
    x = 346,611,208.32/19,933.20
  6. Step 6: Final answer
    x = 17,388.64

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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.