Home / 21,366.28-29,485.43-11,934.84

Finding the Fourth Proportional to 21,366.28, 29,485.43 and 11,934.84

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Solution

The fourth proportional to 21,366.28, 29,485.43 and 11,934.84 is: 16,470.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366.28 : 29,485.43 = 11,934.84 : x
  2. Step 2: Convert to fraction form
    21,366.28/29,485.43 = 11,934.84/x
  3. Step 3: Cross multiply
    21,366.28x = 29,485.43 × 11,934.84
  4. Step 4: Simplify right side
    21,366.28x = 351,903,889.38
  5. Step 5: Solve for x
    x = 351,903,889.38/21,366.28
  6. Step 6: Final answer
    x = 16,470.06

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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.