Home / 21,044.16-31,536.16-15,453.64

Finding the Fourth Proportional to 21,044.16, 31,536.16 and 15,453.64

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Solution

The fourth proportional to 21,044.16, 31,536.16 and 15,453.64 is: 23,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,044.16 : 31,536.16 = 15,453.64 : x
  2. Step 2: Convert to fraction form
    21,044.16/31,536.16 = 15,453.64/x
  3. Step 3: Cross multiply
    21,044.16x = 31,536.16 × 15,453.64
  4. Step 4: Simplify right side
    21,044.16x = 487,348,463.62
  5. Step 5: Solve for x
    x = 487,348,463.62/21,044.16
  6. Step 6: Final answer
    x = 23,158.37

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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.