Home / 31,346.16-47,035.38-20,823.43

Finding the Fourth Proportional to 31,346.16, 47,035.38 and 20,823.43

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Solution

The fourth proportional to 31,346.16, 47,035.38 and 20,823.43 is: 31,245.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,346.16 : 47,035.38 = 20,823.43 : x
  2. Step 2: Convert to fraction form
    31,346.16/47,035.38 = 20,823.43/x
  3. Step 3: Cross multiply
    31,346.16x = 47,035.38 × 20,823.43
  4. Step 4: Simplify right side
    31,346.16x = 979,437,991.64
  5. Step 5: Solve for x
    x = 979,437,991.64/31,346.16
  6. Step 6: Final answer
    x = 31,245.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.