Home / 30,644.82-45,939.87-13,105.62

Finding the Fourth Proportional to 30,644.82, 45,939.87 and 13,105.62

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Solution

The fourth proportional to 30,644.82, 45,939.87 and 13,105.62 is: 19,646.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,644.82 : 45,939.87 = 13,105.62 : x
  2. Step 2: Convert to fraction form
    30,644.82/45,939.87 = 13,105.62/x
  3. Step 3: Cross multiply
    30,644.82x = 45,939.87 × 13,105.62
  4. Step 4: Simplify right side
    30,644.82x = 602,070,479.07
  5. Step 5: Solve for x
    x = 602,070,479.07/30,644.82
  6. Step 6: Final answer
    x = 19,646.73

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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.