Home / 21,367.72-29,484.84-11,935

Finding the Fourth Proportional to 21,367.72, 29,484.84 and 11,935

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Solution

The fourth proportional to 21,367.72, 29,484.84 and 11,935 is: 16,468.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.72 : 29,484.84 = 11,935 : x
  2. Step 2: Convert to fraction form
    21,367.72/29,484.84 = 11,935/x
  3. Step 3: Cross multiply
    21,367.72x = 29,484.84 × 11,935
  4. Step 4: Simplify right side
    21,367.72x = 351,901,565.40
  5. Step 5: Solve for x
    x = 351,901,565.40/21,367.72
  6. Step 6: Final answer
    x = 16,468.84

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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.