Home / 20,705.46-28,573.41-11,273.94

Finding the Fourth Proportional to 20,705.46, 28,573.41 and 11,273.94

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Solution

The fourth proportional to 20,705.46, 28,573.41 and 11,273.94 is: 15,557.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705.46 : 28,573.41 = 11,273.94 : x
  2. Step 2: Convert to fraction form
    20,705.46/28,573.41 = 11,273.94/x
  3. Step 3: Cross multiply
    20,705.46x = 28,573.41 × 11,273.94
  4. Step 4: Simplify right side
    20,705.46x = 322,134,909.94
  5. Step 5: Solve for x
    x = 322,134,909.94/20,705.46
  6. Step 6: Final answer
    x = 15,557.97

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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.