Home / 21,084.84-29,096.28-11,653.20

Finding the Fourth Proportional to 21,084.84, 29,096.28 and 11,653.20

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Solution

The fourth proportional to 21,084.84, 29,096.28 and 11,653.20 is: 16,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.84 : 29,096.28 = 11,653.20 : x
  2. Step 2: Convert to fraction form
    21,084.84/29,096.28 = 11,653.20/x
  3. Step 3: Cross multiply
    21,084.84x = 29,096.28 × 11,653.20
  4. Step 4: Simplify right side
    21,084.84x = 339,064,770.10
  5. Step 5: Solve for x
    x = 339,064,770.10/21,084.84
  6. Step 6: Final answer
    x = 16,080.97

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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.