Home / 22,269.36-30,735.09-12,709.20

Finding the Fourth Proportional to 22,269.36, 30,735.09 and 12,709.20

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Solution

The fourth proportional to 22,269.36, 30,735.09 and 12,709.20 is: 17,540.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,269.36 : 30,735.09 = 12,709.20 : x
  2. Step 2: Convert to fraction form
    22,269.36/30,735.09 = 12,709.20/x
  3. Step 3: Cross multiply
    22,269.36x = 30,735.09 × 12,709.20
  4. Step 4: Simplify right side
    22,269.36x = 390,618,405.83
  5. Step 5: Solve for x
    x = 390,618,405.83/22,269.36
  6. Step 6: Final answer
    x = 17,540.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.