Home / 20,464.98-30,642.72-11,687.82

Finding the Fourth Proportional to 20,464.98, 30,642.72 and 11,687.82

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Solution

The fourth proportional to 20,464.98, 30,642.72 and 11,687.82 is: 17,500.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.98 : 30,642.72 = 11,687.82 : x
  2. Step 2: Convert to fraction form
    20,464.98/30,642.72 = 11,687.82/x
  3. Step 3: Cross multiply
    20,464.98x = 30,642.72 × 11,687.82
  4. Step 4: Simplify right side
    20,464.98x = 358,146,595.67
  5. Step 5: Solve for x
    x = 358,146,595.67/20,464.98
  6. Step 6: Final answer
    x = 17,500.46

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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.