Home / 21,126.64-31,733.16-17,845.60

Finding the Fourth Proportional to 21,126.64, 31,733.16 and 17,845.60

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Solution

The fourth proportional to 21,126.64, 31,733.16 and 17,845.60 is: 26,804.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.64 : 31,733.16 = 17,845.60 : x
  2. Step 2: Convert to fraction form
    21,126.64/31,733.16 = 17,845.60/x
  3. Step 3: Cross multiply
    21,126.64x = 31,733.16 × 17,845.60
  4. Step 4: Simplify right side
    21,126.64x = 566,297,280.10
  5. Step 5: Solve for x
    x = 566,297,280.10/21,126.64
  6. Step 6: Final answer
    x = 26,804.89

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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.