Home / 35,523.86-49,021.25-20,405.88

Finding the Fourth Proportional to 35,523.86, 49,021.25 and 20,405.88

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Solution

The fourth proportional to 35,523.86, 49,021.25 and 20,405.88 is: 28,159.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,523.86 : 49,021.25 = 20,405.88 : x
  2. Step 2: Convert to fraction form
    35,523.86/49,021.25 = 20,405.88/x
  3. Step 3: Cross multiply
    35,523.86x = 49,021.25 × 20,405.88
  4. Step 4: Simplify right side
    35,523.86x = 1,000,321,642.92
  5. Step 5: Solve for x
    x = 1,000,321,642.92/35,523.86
  6. Step 6: Final answer
    x = 28,159.15

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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.