Home / 19,678.83-29,471.26-10,891.95

Finding the Fourth Proportional to 19,678.83, 29,471.26 and 10,891.95

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Solution

The fourth proportional to 19,678.83, 29,471.26 and 10,891.95 is: 16,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,678.83 : 29,471.26 = 10,891.95 : x
  2. Step 2: Convert to fraction form
    19,678.83/29,471.26 = 10,891.95/x
  3. Step 3: Cross multiply
    19,678.83x = 29,471.26 × 10,891.95
  4. Step 4: Simplify right side
    19,678.83x = 320,999,490.36
  5. Step 5: Solve for x
    x = 320,999,490.36/19,678.83
  6. Step 6: Final answer
    x = 16,311.92

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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.