Home / 21,932.64-30,257.28-13,970.52

Finding the Fourth Proportional to 21,932.64, 30,257.28 and 13,970.52

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Solution

The fourth proportional to 21,932.64, 30,257.28 and 13,970.52 is: 19,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,932.64 : 30,257.28 = 13,970.52 : x
  2. Step 2: Convert to fraction form
    21,932.64/30,257.28 = 13,970.52/x
  3. Step 3: Cross multiply
    21,932.64x = 30,257.28 × 13,970.52
  4. Step 4: Simplify right side
    21,932.64x = 422,709,935.39
  5. Step 5: Solve for x
    x = 422,709,935.39/21,932.64
  6. Step 6: Final answer
    x = 19,273.10

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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.