Home / 31,771.23-47,596.68-21,209.40

Finding the Fourth Proportional to 31,771.23, 47,596.68 and 21,209.40

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Solution

The fourth proportional to 31,771.23, 47,596.68 and 21,209.40 is: 31,773.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,771.23 : 47,596.68 = 21,209.40 : x
  2. Step 2: Convert to fraction form
    31,771.23/47,596.68 = 21,209.40/x
  3. Step 3: Cross multiply
    31,771.23x = 47,596.68 × 21,209.40
  4. Step 4: Simplify right side
    31,771.23x = 1,009,497,024.79
  5. Step 5: Solve for x
    x = 1,009,497,024.79/31,771.23
  6. Step 6: Final answer
    x = 31,773.94

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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.