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Finding the Fourth Proportional to 28,357.44, 42,541.20 and 8,633.76

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Solution

The fourth proportional to 28,357.44, 42,541.20 and 8,633.76 is: 12,952.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.44 : 42,541.20 = 8,633.76 : x
  2. Step 2: Convert to fraction form
    28,357.44/42,541.20 = 8,633.76/x
  3. Step 3: Cross multiply
    28,357.44x = 42,541.20 × 8,633.76
  4. Step 4: Simplify right side
    28,357.44x = 367,290,510.91
  5. Step 5: Solve for x
    x = 367,290,510.91/28,357.44
  6. Step 6: Final answer
    x = 12,952.17

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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.