Home / 36,304.90-50,100.99-20,389.61

Finding the Fourth Proportional to 36,304.90, 50,100.99 and 20,389.61

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Solution

The fourth proportional to 36,304.90, 50,100.99 and 20,389.61 is: 28,137.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,304.90 : 50,100.99 = 20,389.61 : x
  2. Step 2: Convert to fraction form
    36,304.90/50,100.99 = 20,389.61/x
  3. Step 3: Cross multiply
    36,304.90x = 50,100.99 × 20,389.61
  4. Step 4: Simplify right side
    36,304.90x = 1,021,539,646.71
  5. Step 5: Solve for x
    x = 1,021,539,646.71/36,304.90
  6. Step 6: Final answer
    x = 28,137.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.