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Finding the Fourth Proportional to 26,980, 37,232.88 and 15,801.76

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Solution

The fourth proportional to 26,980, 37,232.88 and 15,801.76 is: 21,806.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,980 : 37,232.88 = 15,801.76 : x
  2. Step 2: Convert to fraction form
    26,980/37,232.88 = 15,801.76/x
  3. Step 3: Cross multiply
    26,980x = 37,232.88 × 15,801.76
  4. Step 4: Simplify right side
    26,980x = 588,345,033.87
  5. Step 5: Solve for x
    x = 588,345,033.87/26,980
  6. Step 6: Final answer
    x = 21,806.71

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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.