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Finding the Fourth Proportional to 26,796, 36,982.80 and 15,615.84

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Solution

The fourth proportional to 26,796, 36,982.80 and 15,615.84 is: 21,552.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,796 : 36,982.80 = 15,615.84 : x
  2. Step 2: Convert to fraction form
    26,796/36,982.80 = 15,615.84/x
  3. Step 3: Cross multiply
    26,796x = 36,982.80 × 15,615.84
  4. Step 4: Simplify right side
    26,796x = 577,517,487.55
  5. Step 5: Solve for x
    x = 577,517,487.55/26,796
  6. Step 6: Final answer
    x = 21,552.38

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1.5x scale

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.