Home / 21,238.04-31,857.87-10,837.64

Finding the Fourth Proportional to 21,238.04, 31,857.87 and 10,837.64

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Solution

The fourth proportional to 21,238.04, 31,857.87 and 10,837.64 is: 16,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,238.04 : 31,857.87 = 10,837.64 : x
  2. Step 2: Convert to fraction form
    21,238.04/31,857.87 = 10,837.64/x
  3. Step 3: Cross multiply
    21,238.04x = 31,857.87 × 10,837.64
  4. Step 4: Simplify right side
    21,238.04x = 345,264,126.23
  5. Step 5: Solve for x
    x = 345,264,126.23/21,238.04
  6. Step 6: Final answer
    x = 16,256.87

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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.