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Finding the Fourth Proportional to 28,295.57, 42,449.93 and 8,304.26

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Solution

The fourth proportional to 28,295.57, 42,449.93 and 8,304.26 is: 12,458.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,295.57 : 42,449.93 = 8,304.26 : x
  2. Step 2: Convert to fraction form
    28,295.57/42,449.93 = 8,304.26/x
  3. Step 3: Cross multiply
    28,295.57x = 42,449.93 × 8,304.26
  4. Step 4: Simplify right side
    28,295.57x = 352,515,001.93
  5. Step 5: Solve for x
    x = 352,515,001.93/28,295.57
  6. Step 6: Final answer
    x = 12,458.31

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1.5x scale

Why These Related Problems?

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