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Finding the Fourth Proportional to 28,104.98, 42,157.48 and 8,397.38

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Solution

The fourth proportional to 28,104.98, 42,157.48 and 8,397.38 is: 12,596.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.98 : 42,157.48 = 8,397.38 : x
  2. Step 2: Convert to fraction form
    28,104.98/42,157.48 = 8,397.38/x
  3. Step 3: Cross multiply
    28,104.98x = 42,157.48 × 8,397.38
  4. Step 4: Simplify right side
    28,104.98x = 354,012,463.80
  5. Step 5: Solve for x
    x = 354,012,463.80/28,104.98
  6. Step 6: Final answer
    x = 12,596.07

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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.