Home / 20,723.92-28,590.45-14,439.94

Finding the Fourth Proportional to 20,723.92, 28,590.45 and 14,439.94

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Solution

The fourth proportional to 20,723.92, 28,590.45 and 14,439.94 is: 19,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.92 : 28,590.45 = 14,439.94 : x
  2. Step 2: Convert to fraction form
    20,723.92/28,590.45 = 14,439.94/x
  3. Step 3: Cross multiply
    20,723.92x = 28,590.45 × 14,439.94
  4. Step 4: Simplify right side
    20,723.92x = 412,844,382.57
  5. Step 5: Solve for x
    x = 412,844,382.57/20,723.92
  6. Step 6: Final answer
    x = 19,921.15

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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.