Home / 21,234.27-29,303.64-11,674.56

Finding the Fourth Proportional to 21,234.27, 29,303.64 and 11,674.56

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Solution

The fourth proportional to 21,234.27, 29,303.64 and 11,674.56 is: 16,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,234.27 : 29,303.64 = 11,674.56 : x
  2. Step 2: Convert to fraction form
    21,234.27/29,303.64 = 11,674.56/x
  3. Step 3: Cross multiply
    21,234.27x = 29,303.64 × 11,674.56
  4. Step 4: Simplify right side
    21,234.27x = 342,107,103.40
  5. Step 5: Solve for x
    x = 342,107,103.40/21,234.27
  6. Step 6: Final answer
    x = 16,111.08

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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.