Home / 21,966.84-30,314.10-11,895.12

Finding the Fourth Proportional to 21,966.84, 30,314.10 and 11,895.12

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Solution

The fourth proportional to 21,966.84, 30,314.10 and 11,895.12 is: 16,415.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,966.84 : 30,314.10 = 11,895.12 : x
  2. Step 2: Convert to fraction form
    21,966.84/30,314.10 = 11,895.12/x
  3. Step 3: Cross multiply
    21,966.84x = 30,314.10 × 11,895.12
  4. Step 4: Simplify right side
    21,966.84x = 360,589,857.19
  5. Step 5: Solve for x
    x = 360,589,857.19/21,966.84
  6. Step 6: Final answer
    x = 16,415.19

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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.