Home / 30,495.15-42,081.80-17,066.43

Finding the Fourth Proportional to 30,495.15, 42,081.80 and 17,066.43

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Solution

The fourth proportional to 30,495.15, 42,081.80 and 17,066.43 is: 23,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,495.15 : 42,081.80 = 17,066.43 : x
  2. Step 2: Convert to fraction form
    30,495.15/42,081.80 = 17,066.43/x
  3. Step 3: Cross multiply
    30,495.15x = 42,081.80 × 17,066.43
  4. Step 4: Simplify right side
    30,495.15x = 718,186,008.64
  5. Step 5: Solve for x
    x = 718,186,008.64/30,495.15
  6. Step 6: Final answer
    x = 23,550.83

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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.