Home / 21,719.43-29,957.36-19,932.68

Finding the Fourth Proportional to 21,719.43, 29,957.36 and 19,932.68

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Solution

The fourth proportional to 21,719.43, 29,957.36 and 19,932.68 is: 27,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,719.43 : 29,957.36 = 19,932.68 : x
  2. Step 2: Convert to fraction form
    21,719.43/29,957.36 = 19,932.68/x
  3. Step 3: Cross multiply
    21,719.43x = 29,957.36 × 19,932.68
  4. Step 4: Simplify right side
    21,719.43x = 597,130,417.56
  5. Step 5: Solve for x
    x = 597,130,417.56/21,719.43
  6. Step 6: Final answer
    x = 27,492.91

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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.