Home / 21,285.04-29,373.09-11,724.73

Finding the Fourth Proportional to 21,285.04, 29,373.09 and 11,724.73

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Solution

The fourth proportional to 21,285.04, 29,373.09 and 11,724.73 is: 16,179.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,285.04 : 29,373.09 = 11,724.73 : x
  2. Step 2: Convert to fraction form
    21,285.04/29,373.09 = 11,724.73/x
  3. Step 3: Cross multiply
    21,285.04x = 29,373.09 × 11,724.73
  4. Step 4: Simplify right side
    21,285.04x = 344,391,549.52
  5. Step 5: Solve for x
    x = 344,391,549.52/21,285.04
  6. Step 6: Final answer
    x = 16,179.98

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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.