Home / 21,056.40-29,037.64-16,268.72

Finding the Fourth Proportional to 21,056.40, 29,037.64 and 16,268.72

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Solution

The fourth proportional to 21,056.40, 29,037.64 and 16,268.72 is: 22,435.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,056.40 : 29,037.64 = 16,268.72 : x
  2. Step 2: Convert to fraction form
    21,056.40/29,037.64 = 16,268.72/x
  3. Step 3: Cross multiply
    21,056.40x = 29,037.64 × 16,268.72
  4. Step 4: Simplify right side
    21,056.40x = 472,405,234.62
  5. Step 5: Solve for x
    x = 472,405,234.62/21,056.40
  6. Step 6: Final answer
    x = 22,435.23

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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.