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Finding the Fourth Proportional to 40,295.70, 60,455.70 and 21,584.70

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Solution

The fourth proportional to 40,295.70, 60,455.70 and 21,584.70 is: 32,383.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,295.70 : 60,455.70 = 21,584.70 : x
  2. Step 2: Convert to fraction form
    40,295.70/60,455.70 = 21,584.70/x
  3. Step 3: Cross multiply
    40,295.70x = 60,455.70 × 21,584.70
  4. Step 4: Simplify right side
    40,295.70x = 1,304,918,147.79
  5. Step 5: Solve for x
    x = 1,304,918,147.79/40,295.70
  6. Step 6: Final answer
    x = 32,383.56

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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.