Home / 21,667.04-29,900.56-11,731.04

Finding the Fourth Proportional to 21,667.04, 29,900.56 and 11,731.04

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Solution

The fourth proportional to 21,667.04, 29,900.56 and 11,731.04 is: 16,188.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,667.04 : 29,900.56 = 11,731.04 : x
  2. Step 2: Convert to fraction form
    21,667.04/29,900.56 = 11,731.04/x
  3. Step 3: Cross multiply
    21,667.04x = 29,900.56 × 11,731.04
  4. Step 4: Simplify right side
    21,667.04x = 350,764,665.38
  5. Step 5: Solve for x
    x = 350,764,665.38/21,667.04
  6. Step 6: Final answer
    x = 16,188.86

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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.