Home / 45,638.64-68,467.68-19,342.80

Finding the Fourth Proportional to 45,638.64, 68,467.68 and 19,342.80

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Solution

The fourth proportional to 45,638.64, 68,467.68 and 19,342.80 is: 29,018.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,638.64 : 68,467.68 = 19,342.80 : x
  2. Step 2: Convert to fraction form
    45,638.64/68,467.68 = 19,342.80/x
  3. Step 3: Cross multiply
    45,638.64x = 68,467.68 × 19,342.80
  4. Step 4: Simplify right side
    45,638.64x = 1,324,356,640.70
  5. Step 5: Solve for x
    x = 1,324,356,640.70/45,638.64
  6. Step 6: Final answer
    x = 29,018.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.