Home / 19,102.20-28,653.30-13,270.20

Finding the Fourth Proportional to 19,102.20, 28,653.30 and 13,270.20

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Solution

The fourth proportional to 19,102.20, 28,653.30 and 13,270.20 is: 19,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.20 : 28,653.30 = 13,270.20 : x
  2. Step 2: Convert to fraction form
    19,102.20/28,653.30 = 13,270.20/x
  3. Step 3: Cross multiply
    19,102.20x = 28,653.30 × 13,270.20
  4. Step 4: Simplify right side
    19,102.20x = 380,235,021.66
  5. Step 5: Solve for x
    x = 380,235,021.66/19,102.20
  6. Step 6: Final answer
    x = 19,905.30

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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.