Home / 19,664.20-29,496.30-5,813.20

Finding the Fourth Proportional to 19,664.20, 29,496.30 and 5,813.20

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Solution

The fourth proportional to 19,664.20, 29,496.30 and 5,813.20 is: 8,719.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,664.20 : 29,496.30 = 5,813.20 : x
  2. Step 2: Convert to fraction form
    19,664.20/29,496.30 = 5,813.20/x
  3. Step 3: Cross multiply
    19,664.20x = 29,496.30 × 5,813.20
  4. Step 4: Simplify right side
    19,664.20x = 171,467,891.16
  5. Step 5: Solve for x
    x = 171,467,891.16/19,664.20
  6. Step 6: Final answer
    x = 8,719.80

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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.