Home / 20,724.17-28,590.79-14,440.19

Finding the Fourth Proportional to 20,724.17, 28,590.79 and 14,440.19

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Solution

The fourth proportional to 20,724.17, 28,590.79 and 14,440.19 is: 19,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.17 : 28,590.79 = 14,440.19 : x
  2. Step 2: Convert to fraction form
    20,724.17/28,590.79 = 14,440.19/x
  3. Step 3: Cross multiply
    20,724.17x = 28,590.79 × 14,440.19
  4. Step 4: Simplify right side
    20,724.17x = 412,856,439.85
  5. Step 5: Solve for x
    x = 412,856,439.85/20,724.17
  6. Step 6: Final answer
    x = 19,921.49

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Half scale
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Double scale
Find fourth proportional to 20,725.17, 28,592.17 and 14,441.19
Similar ratio
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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.