Home / 20,553.28-28,362.96-11,601.61

Finding the Fourth Proportional to 20,553.28, 28,362.96 and 11,601.61

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Solution

The fourth proportional to 20,553.28, 28,362.96 and 11,601.61 is: 16,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.28 : 28,362.96 = 11,601.61 : x
  2. Step 2: Convert to fraction form
    20,553.28/28,362.96 = 11,601.61/x
  3. Step 3: Cross multiply
    20,553.28x = 28,362.96 × 11,601.61
  4. Step 4: Simplify right side
    20,553.28x = 329,056,089.00
  5. Step 5: Solve for x
    x = 329,056,089.00/20,553.28
  6. Step 6: Final answer
    x = 16,009.91

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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.