Home / 30,643.30-45,979.23-18,187.83

Finding the Fourth Proportional to 30,643.30, 45,979.23 and 18,187.83

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Solution

The fourth proportional to 30,643.30, 45,979.23 and 18,187.83 is: 27,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.30 : 45,979.23 = 18,187.83 : x
  2. Step 2: Convert to fraction form
    30,643.30/45,979.23 = 18,187.83/x
  3. Step 3: Cross multiply
    30,643.30x = 45,979.23 × 18,187.83
  4. Step 4: Simplify right side
    30,643.30x = 836,262,418.77
  5. Step 5: Solve for x
    x = 836,262,418.77/30,643.30
  6. Step 6: Final answer
    x = 27,290.22

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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.