Home / 29,128.18-40,196.78-16,555.36

Finding the Fourth Proportional to 29,128.18, 40,196.78 and 16,555.36

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Solution

The fourth proportional to 29,128.18, 40,196.78 and 16,555.36 is: 22,846.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,128.18 : 40,196.78 = 16,555.36 : x
  2. Step 2: Convert to fraction form
    29,128.18/40,196.78 = 16,555.36/x
  3. Step 3: Cross multiply
    29,128.18x = 40,196.78 × 16,555.36
  4. Step 4: Simplify right side
    29,128.18x = 665,472,163.74
  5. Step 5: Solve for x
    x = 665,472,163.74/29,128.18
  6. Step 6: Final answer
    x = 22,846.34

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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.