Home / 22,228.62-30,672.09-12,795.36

Finding the Fourth Proportional to 22,228.62, 30,672.09 and 12,795.36

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Solution

The fourth proportional to 22,228.62, 30,672.09 and 12,795.36 is: 17,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.62 : 30,672.09 = 12,795.36 : x
  2. Step 2: Convert to fraction form
    22,228.62/30,672.09 = 12,795.36/x
  3. Step 3: Cross multiply
    22,228.62x = 30,672.09 × 12,795.36
  4. Step 4: Simplify right side
    22,228.62x = 392,460,433.50
  5. Step 5: Solve for x
    x = 392,460,433.50/22,228.62
  6. Step 6: Final answer
    x = 17,655.64

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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.