Home / 21,364.32-29,493.36-16,286.88

Finding the Fourth Proportional to 21,364.32, 29,493.36 and 16,286.88

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Solution

The fourth proportional to 21,364.32, 29,493.36 and 16,286.88 is: 22,483.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.32 : 29,493.36 = 16,286.88 : x
  2. Step 2: Convert to fraction form
    21,364.32/29,493.36 = 16,286.88/x
  3. Step 3: Cross multiply
    21,364.32x = 29,493.36 × 16,286.88
  4. Step 4: Simplify right side
    21,364.32x = 480,354,815.12
  5. Step 5: Solve for x
    x = 480,354,815.12/21,364.32
  6. Step 6: Final answer
    x = 22,483.97

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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.