Home / 36,513.91-50,389.40-20,381.95

Finding the Fourth Proportional to 36,513.91, 50,389.40 and 20,381.95

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Solution

The fourth proportional to 36,513.91, 50,389.40 and 20,381.95 is: 28,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,513.91 : 50,389.40 = 20,381.95 : x
  2. Step 2: Convert to fraction form
    36,513.91/50,389.40 = 20,381.95/x
  3. Step 3: Cross multiply
    36,513.91x = 50,389.40 × 20,381.95
  4. Step 4: Simplify right side
    36,513.91x = 1,027,034,231.33
  5. Step 5: Solve for x
    x = 1,027,034,231.33/36,513.91
  6. Step 6: Final answer
    x = 28,127.20

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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.