Home / 35,780.21-49,379-20,673.52

Finding the Fourth Proportional to 35,780.21, 49,379 and 20,673.52

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Solution

The fourth proportional to 35,780.21, 49,379 and 20,673.52 is: 28,530.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,780.21 : 49,379 = 20,673.52 : x
  2. Step 2: Convert to fraction form
    35,780.21/49,379 = 20,673.52/x
  3. Step 3: Cross multiply
    35,780.21x = 49,379 × 20,673.52
  4. Step 4: Simplify right side
    35,780.21x = 1,020,837,744.08
  5. Step 5: Solve for x
    x = 1,020,837,744.08/35,780.21
  6. Step 6: Final answer
    x = 28,530.79

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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.