Home / 19,243.20-28,864.80-11,823.60

Finding the Fourth Proportional to 19,243.20, 28,864.80 and 11,823.60

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Solution

The fourth proportional to 19,243.20, 28,864.80 and 11,823.60 is: 17,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.20 : 28,864.80 = 11,823.60 : x
  2. Step 2: Convert to fraction form
    19,243.20/28,864.80 = 11,823.60/x
  3. Step 3: Cross multiply
    19,243.20x = 28,864.80 × 11,823.60
  4. Step 4: Simplify right side
    19,243.20x = 341,285,849.28
  5. Step 5: Solve for x
    x = 341,285,849.28/19,243.20
  6. Step 6: Final answer
    x = 17,735.40

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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.