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Finding the Fourth Proportional to 28,304.98, 42,457.42 and 7,528.48

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Solution

The fourth proportional to 28,304.98, 42,457.42 and 7,528.48 is: 11,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,304.98 : 42,457.42 = 7,528.48 : x
  2. Step 2: Convert to fraction form
    28,304.98/42,457.42 = 7,528.48/x
  3. Step 3: Cross multiply
    28,304.98x = 42,457.42 × 7,528.48
  4. Step 4: Simplify right side
    28,304.98x = 319,639,837.32
  5. Step 5: Solve for x
    x = 319,639,837.32/28,304.98
  6. Step 6: Final answer
    x = 11,292.71

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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.