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Finding the Fourth Proportional to 35,428.50, 48,891.33 and 19,512.90

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Solution

The fourth proportional to 35,428.50, 48,891.33 and 19,512.90 is: 26,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,428.50 : 48,891.33 = 19,512.90 : x
  2. Step 2: Convert to fraction form
    35,428.50/48,891.33 = 19,512.90/x
  3. Step 3: Cross multiply
    35,428.50x = 48,891.33 × 19,512.90
  4. Step 4: Simplify right side
    35,428.50x = 954,011,633.16
  5. Step 5: Solve for x
    x = 954,011,633.16/35,428.50
  6. Step 6: Final answer
    x = 26,927.80

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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.