Home / 19,635.40-29,456.70-7,949.80

Finding the Fourth Proportional to 19,635.40, 29,456.70 and 7,949.80

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Solution

The fourth proportional to 19,635.40, 29,456.70 and 7,949.80 is: 11,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,635.40 : 29,456.70 = 7,949.80 : x
  2. Step 2: Convert to fraction form
    19,635.40/29,456.70 = 7,949.80/x
  3. Step 3: Cross multiply
    19,635.40x = 29,456.70 × 7,949.80
  4. Step 4: Simplify right side
    19,635.40x = 234,174,873.66
  5. Step 5: Solve for x
    x = 234,174,873.66/19,635.40
  6. Step 6: Final answer
    x = 11,926.16

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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.