Home / 21,076.07-29,084.12-11,516.28

Finding the Fourth Proportional to 21,076.07, 29,084.12 and 11,516.28

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Solution

The fourth proportional to 21,076.07, 29,084.12 and 11,516.28 is: 15,892.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.07 : 29,084.12 = 11,516.28 : x
  2. Step 2: Convert to fraction form
    21,076.07/29,084.12 = 11,516.28/x
  3. Step 3: Cross multiply
    21,076.07x = 29,084.12 × 11,516.28
  4. Step 4: Simplify right side
    21,076.07x = 334,940,811.89
  5. Step 5: Solve for x
    x = 334,940,811.89/21,076.07
  6. Step 6: Final answer
    x = 15,892.00

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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.