Home / 21,964.01-30,310.29-11,892.46

Finding the Fourth Proportional to 21,964.01, 30,310.29 and 11,892.46

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Solution

The fourth proportional to 21,964.01, 30,310.29 and 11,892.46 is: 16,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.01 : 30,310.29 = 11,892.46 : x
  2. Step 2: Convert to fraction form
    21,964.01/30,310.29 = 11,892.46/x
  3. Step 3: Cross multiply
    21,964.01x = 30,310.29 × 11,892.46
  4. Step 4: Simplify right side
    21,964.01x = 360,463,911.41
  5. Step 5: Solve for x
    x = 360,463,911.41/21,964.01
  6. Step 6: Final answer
    x = 16,411.57

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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.