Home / 21,736.53-29,995.65-12,304.89

Finding the Fourth Proportional to 21,736.53, 29,995.65 and 12,304.89

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Solution

The fourth proportional to 21,736.53, 29,995.65 and 12,304.89 is: 16,980.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.53 : 29,995.65 = 12,304.89 : x
  2. Step 2: Convert to fraction form
    21,736.53/29,995.65 = 12,304.89/x
  3. Step 3: Cross multiply
    21,736.53x = 29,995.65 × 12,304.89
  4. Step 4: Simplify right side
    21,736.53x = 369,093,173.73
  5. Step 5: Solve for x
    x = 369,093,173.73/21,736.53
  6. Step 6: Final answer
    x = 16,980.32

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1.5x scale

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.