Home / 50,218.40-75,328.32-20,636.48

Finding the Fourth Proportional to 50,218.40, 75,328.32 and 20,636.48

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Solution

The fourth proportional to 50,218.40, 75,328.32 and 20,636.48 is: 30,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,218.40 : 75,328.32 = 20,636.48 : x
  2. Step 2: Convert to fraction form
    50,218.40/75,328.32 = 20,636.48/x
  3. Step 3: Cross multiply
    50,218.40x = 75,328.32 × 20,636.48
  4. Step 4: Simplify right side
    50,218.40x = 1,554,511,369.11
  5. Step 5: Solve for x
    x = 1,554,511,369.11/50,218.40
  6. Step 6: Final answer
    x = 30,955.02

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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.