Home / 31,684.91-47,483.03-21,023.79

Finding the Fourth Proportional to 31,684.91, 47,483.03 and 21,023.79

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Solution

The fourth proportional to 31,684.91, 47,483.03 and 21,023.79 is: 31,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,684.91 : 47,483.03 = 21,023.79 : x
  2. Step 2: Convert to fraction form
    31,684.91/47,483.03 = 21,023.79/x
  3. Step 3: Cross multiply
    31,684.91x = 47,483.03 × 21,023.79
  4. Step 4: Simplify right side
    31,684.91x = 998,273,146.16
  5. Step 5: Solve for x
    x = 998,273,146.16/31,684.91
  6. Step 6: Final answer
    x = 31,506.27

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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.