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Finding the Fourth Proportional to 17,740.80, 24,364.80 and 15,436.80

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Solution

The fourth proportional to 17,740.80, 24,364.80 and 15,436.80 is: 21,200.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,740.80 : 24,364.80 = 15,436.80 : x
  2. Step 2: Convert to fraction form
    17,740.80/24,364.80 = 15,436.80/x
  3. Step 3: Cross multiply
    17,740.80x = 24,364.80 × 15,436.80
  4. Step 4: Simplify right side
    17,740.80x = 376,114,544.64
  5. Step 5: Solve for x
    x = 376,114,544.64/17,740.80
  6. Step 6: Final answer
    x = 21,200.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.