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Finding the Fourth Proportional to 29,584.51, 40,757.25 and 20,615.74

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Solution

The fourth proportional to 29,584.51, 40,757.25 and 20,615.74 is: 28,401.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,584.51 : 40,757.25 = 20,615.74 : x
  2. Step 2: Convert to fraction form
    29,584.51/40,757.25 = 20,615.74/x
  3. Step 3: Cross multiply
    29,584.51x = 40,757.25 × 20,615.74
  4. Step 4: Simplify right side
    29,584.51x = 840,240,869.12
  5. Step 5: Solve for x
    x = 840,240,869.12/29,584.51
  6. Step 6: Final answer
    x = 28,401.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.