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Finding the Fourth Proportional to 20,597.50, 30,902.40 and 14,605.12

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Solution

The fourth proportional to 20,597.50, 30,902.40 and 14,605.12 is: 21,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,597.50 : 30,902.40 = 14,605.12 : x
  2. Step 2: Convert to fraction form
    20,597.50/30,902.40 = 14,605.12/x
  3. Step 3: Cross multiply
    20,597.50x = 30,902.40 × 14,605.12
  4. Step 4: Simplify right side
    20,597.50x = 451,333,260.29
  5. Step 5: Solve for x
    x = 451,333,260.29/20,597.50
  6. Step 6: Final answer
    x = 21,912.04

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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.