Home / 17,103.80-25,631.40-11,903.60

Finding the Fourth Proportional to 17,103.80, 25,631.40 and 11,903.60

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Solution

The fourth proportional to 17,103.80, 25,631.40 and 11,903.60 is: 17,838.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.80 : 25,631.40 = 11,903.60 : x
  2. Step 2: Convert to fraction form
    17,103.80/25,631.40 = 11,903.60/x
  3. Step 3: Cross multiply
    17,103.80x = 25,631.40 × 11,903.60
  4. Step 4: Simplify right side
    17,103.80x = 305,105,933.04
  5. Step 5: Solve for x
    x = 305,105,933.04/17,103.80
  6. Step 6: Final answer
    x = 17,838.49

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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.