Home / 20,590.70-28,393.80-17,616.38

Finding the Fourth Proportional to 20,590.70, 28,393.80 and 17,616.38

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Solution

The fourth proportional to 20,590.70, 28,393.80 and 17,616.38 is: 24,292.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,590.70 : 28,393.80 = 17,616.38 : x
  2. Step 2: Convert to fraction form
    20,590.70/28,393.80 = 17,616.38/x
  3. Step 3: Cross multiply
    20,590.70x = 28,393.80 × 17,616.38
  4. Step 4: Simplify right side
    20,590.70x = 500,195,970.44
  5. Step 5: Solve for x
    x = 500,195,970.44/20,590.70
  6. Step 6: Final answer
    x = 24,292.32

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Half scale
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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.