Home / 31,762.16-43,811.76-20,446.44

Finding the Fourth Proportional to 31,762.16, 43,811.76 and 20,446.44

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Solution

The fourth proportional to 31,762.16, 43,811.76 and 20,446.44 is: 28,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,762.16 : 43,811.76 = 20,446.44 : x
  2. Step 2: Convert to fraction form
    31,762.16/43,811.76 = 20,446.44/x
  3. Step 3: Cross multiply
    31,762.16x = 43,811.76 × 20,446.44
  4. Step 4: Simplify right side
    31,762.16x = 895,794,522.13
  5. Step 5: Solve for x
    x = 895,794,522.13/31,762.16
  6. Step 6: Final answer
    x = 28,203.20

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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.