Home / 21,001.32-28,932.52-14,616.96

Finding the Fourth Proportional to 21,001.32, 28,932.52 and 14,616.96

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Solution

The fourth proportional to 21,001.32, 28,932.52 and 14,616.96 is: 20,137.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001.32 : 28,932.52 = 14,616.96 : x
  2. Step 2: Convert to fraction form
    21,001.32/28,932.52 = 14,616.96/x
  3. Step 3: Cross multiply
    21,001.32x = 28,932.52 × 14,616.96
  4. Step 4: Simplify right side
    21,001.32x = 422,905,487.54
  5. Step 5: Solve for x
    x = 422,905,487.54/21,001.32
  6. Step 6: Final answer
    x = 20,137.09

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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.