Home / 26,491.45-36,541.98-15,729.02

Finding the Fourth Proportional to 26,491.45, 36,541.98 and 15,729.02

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Solution

The fourth proportional to 26,491.45, 36,541.98 and 15,729.02 is: 21,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,491.45 : 36,541.98 = 15,729.02 : x
  2. Step 2: Convert to fraction form
    26,491.45/36,541.98 = 15,729.02/x
  3. Step 3: Cross multiply
    26,491.45x = 36,541.98 × 15,729.02
  4. Step 4: Simplify right side
    26,491.45x = 574,769,534.26
  5. Step 5: Solve for x
    x = 574,769,534.26/26,491.45
  6. Step 6: Final answer
    x = 21,696.42

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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.