Home / 20,473.93-28,269.42-20,146.97

Finding the Fourth Proportional to 20,473.93, 28,269.42 and 20,146.97

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Solution

The fourth proportional to 20,473.93, 28,269.42 and 20,146.97 is: 27,817.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,473.93 : 28,269.42 = 20,146.97 : x
  2. Step 2: Convert to fraction form
    20,473.93/28,269.42 = 20,146.97/x
  3. Step 3: Cross multiply
    20,473.93x = 28,269.42 × 20,146.97
  4. Step 4: Simplify right side
    20,473.93x = 569,543,156.66
  5. Step 5: Solve for x
    x = 569,543,156.66/20,473.93
  6. Step 6: Final answer
    x = 27,817.97

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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.