Home / 21,347.62-29,458.19-11,785.96

Finding the Fourth Proportional to 21,347.62, 29,458.19 and 11,785.96

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Solution

The fourth proportional to 21,347.62, 29,458.19 and 11,785.96 is: 16,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.62 : 29,458.19 = 11,785.96 : x
  2. Step 2: Convert to fraction form
    21,347.62/29,458.19 = 11,785.96/x
  3. Step 3: Cross multiply
    21,347.62x = 29,458.19 × 11,785.96
  4. Step 4: Simplify right side
    21,347.62x = 347,193,049.01
  5. Step 5: Solve for x
    x = 347,193,049.01/21,347.62
  6. Step 6: Final answer
    x = 16,263.79

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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.