Home / 21,246.21-29,318.31-11,814.84

Finding the Fourth Proportional to 21,246.21, 29,318.31 and 11,814.84

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Solution

The fourth proportional to 21,246.21, 29,318.31 and 11,814.84 is: 16,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.21 : 29,318.31 = 11,814.84 : x
  2. Step 2: Convert to fraction form
    21,246.21/29,318.31 = 11,814.84/x
  3. Step 3: Cross multiply
    21,246.21x = 29,318.31 × 11,814.84
  4. Step 4: Simplify right side
    21,246.21x = 346,391,141.72
  5. Step 5: Solve for x
    x = 346,391,141.72/21,246.21
  6. Step 6: Final answer
    x = 16,303.67

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1.5x scale

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.