Home / 20,968.65-28,934.57-11,892.17

Finding the Fourth Proportional to 20,968.65, 28,934.57 and 11,892.17

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Solution

The fourth proportional to 20,968.65, 28,934.57 and 11,892.17 is: 16,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,968.65 : 28,934.57 = 11,892.17 : x
  2. Step 2: Convert to fraction form
    20,968.65/28,934.57 = 11,892.17/x
  3. Step 3: Cross multiply
    20,968.65x = 28,934.57 × 11,892.17
  4. Step 4: Simplify right side
    20,968.65x = 344,094,724.69
  5. Step 5: Solve for x
    x = 344,094,724.69/20,968.65
  6. Step 6: Final answer
    x = 16,409.96

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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.