Home / 21,268.77-29,362.41-14,914.86

Finding the Fourth Proportional to 21,268.77, 29,362.41 and 14,914.86

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Solution

The fourth proportional to 21,268.77, 29,362.41 and 14,914.86 is: 20,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,268.77 : 29,362.41 = 14,914.86 : x
  2. Step 2: Convert to fraction form
    21,268.77/29,362.41 = 14,914.86/x
  3. Step 3: Cross multiply
    21,268.77x = 29,362.41 × 14,914.86
  4. Step 4: Simplify right side
    21,268.77x = 437,936,234.41
  5. Step 5: Solve for x
    x = 437,936,234.41/21,268.77
  6. Step 6: Final answer
    x = 20,590.58

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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.