Home / 21,076.11-31,584.09-14,449.50

Finding the Fourth Proportional to 21,076.11, 31,584.09 and 14,449.50

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Solution

The fourth proportional to 21,076.11, 31,584.09 and 14,449.50 is: 21,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.11 : 31,584.09 = 14,449.50 : x
  2. Step 2: Convert to fraction form
    21,076.11/31,584.09 = 14,449.50/x
  3. Step 3: Cross multiply
    21,076.11x = 31,584.09 × 14,449.50
  4. Step 4: Simplify right side
    21,076.11x = 456,374,308.46
  5. Step 5: Solve for x
    x = 456,374,308.46/21,076.11
  6. Step 6: Final answer
    x = 21,653.63

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1.5x scale

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.