Home / 30,653.15-45,979.38-21,610.04

Finding the Fourth Proportional to 30,653.15, 45,979.38 and 21,610.04

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Solution

The fourth proportional to 30,653.15, 45,979.38 and 21,610.04 is: 32,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,653.15 : 45,979.38 = 21,610.04 : x
  2. Step 2: Convert to fraction form
    30,653.15/45,979.38 = 21,610.04/x
  3. Step 3: Cross multiply
    30,653.15x = 45,979.38 × 21,610.04
  4. Step 4: Simplify right side
    30,653.15x = 993,616,011.08
  5. Step 5: Solve for x
    x = 993,616,011.08/30,653.15
  6. Step 6: Final answer
    x = 32,414.81

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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.