Home / 22,233.36-30,689.76-12,805.68

Finding the Fourth Proportional to 22,233.36, 30,689.76 and 12,805.68

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Solution

The fourth proportional to 22,233.36, 30,689.76 and 12,805.68 is: 17,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,233.36 : 30,689.76 = 12,805.68 : x
  2. Step 2: Convert to fraction form
    22,233.36/30,689.76 = 12,805.68/x
  3. Step 3: Cross multiply
    22,233.36x = 30,689.76 × 12,805.68
  4. Step 4: Simplify right side
    22,233.36x = 393,003,245.84
  5. Step 5: Solve for x
    x = 393,003,245.84/22,233.36
  6. Step 6: Final answer
    x = 17,676.29

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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.