Home / 22,195.71-30,630.98-12,764.27

Finding the Fourth Proportional to 22,195.71, 30,630.98 and 12,764.27

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Solution

The fourth proportional to 22,195.71, 30,630.98 and 12,764.27 is: 17,615.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,195.71 : 30,630.98 = 12,764.27 : x
  2. Step 2: Convert to fraction form
    22,195.71/30,630.98 = 12,764.27/x
  3. Step 3: Cross multiply
    22,195.71x = 30,630.98 × 12,764.27
  4. Step 4: Simplify right side
    22,195.71x = 390,982,099.08
  5. Step 5: Solve for x
    x = 390,982,099.08/22,195.71
  6. Step 6: Final answer
    x = 17,615.21

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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.