Home / 21,084.71-29,096.92-12,132.03

Finding the Fourth Proportional to 21,084.71, 29,096.92 and 12,132.03

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Solution

The fourth proportional to 21,084.71, 29,096.92 and 12,132.03 is: 16,742.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084.71 : 29,096.92 = 12,132.03 : x
  2. Step 2: Convert to fraction form
    21,084.71/29,096.92 = 12,132.03/x
  3. Step 3: Cross multiply
    21,084.71x = 29,096.92 × 12,132.03
  4. Step 4: Simplify right side
    21,084.71x = 353,004,666.96
  5. Step 5: Solve for x
    x = 353,004,666.96/21,084.71
  6. Step 6: Final answer
    x = 16,742.22

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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.