Home / 22,176.96-30,371.16-21,885.36

Finding the Fourth Proportional to 22,176.96, 30,371.16 and 21,885.36

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Solution

The fourth proportional to 22,176.96, 30,371.16 and 21,885.36 is: 29,971.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,176.96 : 30,371.16 = 21,885.36 : x
  2. Step 2: Convert to fraction form
    22,176.96/30,371.16 = 21,885.36/x
  3. Step 3: Cross multiply
    22,176.96x = 30,371.16 × 21,885.36
  4. Step 4: Simplify right side
    22,176.96x = 664,683,770.22
  5. Step 5: Solve for x
    x = 664,683,770.22/22,176.96
  6. Step 6: Final answer
    x = 29,971.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.