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Finding the Fourth Proportional to 30,934.55, 42,689.66 and 17,505.56

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Solution

The fourth proportional to 30,934.55, 42,689.66 and 17,505.56 is: 24,157.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,934.55 : 42,689.66 = 17,505.56 : x
  2. Step 2: Convert to fraction form
    30,934.55/42,689.66 = 17,505.56/x
  3. Step 3: Cross multiply
    30,934.55x = 42,689.66 × 17,505.56
  4. Step 4: Simplify right side
    30,934.55x = 747,306,263.62
  5. Step 5: Solve for x
    x = 747,306,263.62/30,934.55
  6. Step 6: Final answer
    x = 24,157.66

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