Home / 22,338.19-30,829.16-12,778.96

Finding the Fourth Proportional to 22,338.19, 30,829.16 and 12,778.96

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Solution

The fourth proportional to 22,338.19, 30,829.16 and 12,778.96 is: 17,636.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,338.19 : 30,829.16 = 12,778.96 : x
  2. Step 2: Convert to fraction form
    22,338.19/30,829.16 = 12,778.96/x
  3. Step 3: Cross multiply
    22,338.19x = 30,829.16 × 12,778.96
  4. Step 4: Simplify right side
    22,338.19x = 393,964,602.47
  5. Step 5: Solve for x
    x = 393,964,602.47/22,338.19
  6. Step 6: Final answer
    x = 17,636.37

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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.