Home / 19,764.54-29,646.81-13,647.42

Finding the Fourth Proportional to 19,764.54, 29,646.81 and 13,647.42

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Solution

The fourth proportional to 19,764.54, 29,646.81 and 13,647.42 is: 20,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.54 : 29,646.81 = 13,647.42 : x
  2. Step 2: Convert to fraction form
    19,764.54/29,646.81 = 13,647.42/x
  3. Step 3: Cross multiply
    19,764.54x = 29,646.81 × 13,647.42
  4. Step 4: Simplify right side
    19,764.54x = 404,602,467.73
  5. Step 5: Solve for x
    x = 404,602,467.73/19,764.54
  6. Step 6: Final answer
    x = 20,471.13

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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.