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Finding the Fourth Proportional to 28,303.43, 42,471.54 and 11,660.36

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Solution

The fourth proportional to 28,303.43, 42,471.54 and 11,660.36 is: 17,497.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.43 : 42,471.54 = 11,660.36 : x
  2. Step 2: Convert to fraction form
    28,303.43/42,471.54 = 11,660.36/x
  3. Step 3: Cross multiply
    28,303.43x = 42,471.54 × 11,660.36
  4. Step 4: Simplify right side
    28,303.43x = 495,233,233.80
  5. Step 5: Solve for x
    x = 495,233,233.80/28,303.43
  6. Step 6: Final answer
    x = 17,497.29

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.