Home / 31,856.48-43,942.76-20,522.24

Finding the Fourth Proportional to 31,856.48, 43,942.76 and 20,522.24

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Solution

The fourth proportional to 31,856.48, 43,942.76 and 20,522.24 is: 28,308.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,856.48 : 43,942.76 = 20,522.24 : x
  2. Step 2: Convert to fraction form
    31,856.48/43,942.76 = 20,522.24/x
  3. Step 3: Cross multiply
    31,856.48x = 43,942.76 × 20,522.24
  4. Step 4: Simplify right side
    31,856.48x = 901,803,866.98
  5. Step 5: Solve for x
    x = 901,803,866.98/31,856.48
  6. Step 6: Final answer
    x = 28,308.33

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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.