Home / 21,311.07-31,954.29-9,464.82

Finding the Fourth Proportional to 21,311.07, 31,954.29 and 9,464.82

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Solution

The fourth proportional to 21,311.07, 31,954.29 and 9,464.82 is: 14,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311.07 : 31,954.29 = 9,464.82 : x
  2. Step 2: Convert to fraction form
    21,311.07/31,954.29 = 9,464.82/x
  3. Step 3: Cross multiply
    21,311.07x = 31,954.29 × 9,464.82
  4. Step 4: Simplify right side
    21,311.07x = 302,441,603.08
  5. Step 5: Solve for x
    x = 302,441,603.08/21,311.07
  6. Step 6: Final answer
    x = 14,191.76

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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.