Home / 20,896.96-31,272.20-14,980.36

Finding the Fourth Proportional to 20,896.96, 31,272.20 and 14,980.36

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Solution

The fourth proportional to 20,896.96, 31,272.20 and 14,980.36 is: 22,418.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,896.96 : 31,272.20 = 14,980.36 : x
  2. Step 2: Convert to fraction form
    20,896.96/31,272.20 = 14,980.36/x
  3. Step 3: Cross multiply
    20,896.96x = 31,272.20 × 14,980.36
  4. Step 4: Simplify right side
    20,896.96x = 468,468,813.99
  5. Step 5: Solve for x
    x = 468,468,813.99/20,896.96
  6. Step 6: Final answer
    x = 22,418.04

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1.5x scale

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.