Home / 49,634.80-74,387.40-20,028.40

Finding the Fourth Proportional to 49,634.80, 74,387.40 and 20,028.40

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Solution

The fourth proportional to 49,634.80, 74,387.40 and 20,028.40 is: 30,016.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,634.80 : 74,387.40 = 20,028.40 : x
  2. Step 2: Convert to fraction form
    49,634.80/74,387.40 = 20,028.40/x
  3. Step 3: Cross multiply
    49,634.80x = 74,387.40 × 20,028.40
  4. Step 4: Simplify right side
    49,634.80x = 1,489,860,602.16
  5. Step 5: Solve for x
    x = 1,489,860,602.16/49,634.80
  6. Step 6: Final answer
    x = 30,016.45

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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.