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Finding the Fourth Proportional to 30,472.11, 42,048.61 and 17,043.03

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Solution

The fourth proportional to 30,472.11, 42,048.61 and 17,043.03 is: 23,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,472.11 : 42,048.61 = 17,043.03 : x
  2. Step 2: Convert to fraction form
    30,472.11/42,048.61 = 17,043.03/x
  3. Step 3: Cross multiply
    30,472.11x = 42,048.61 × 17,043.03
  4. Step 4: Simplify right side
    30,472.11x = 716,635,679.08
  5. Step 5: Solve for x
    x = 716,635,679.08/30,472.11
  6. Step 6: Final answer
    x = 23,517.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.