Home / 31,389.62-47,072.38-13,366.43

Finding the Fourth Proportional to 31,389.62, 47,072.38 and 13,366.43

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Solution

The fourth proportional to 31,389.62, 47,072.38 and 13,366.43 is: 20,044.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.62 : 47,072.38 = 13,366.43 : x
  2. Step 2: Convert to fraction form
    31,389.62/47,072.38 = 13,366.43/x
  3. Step 3: Cross multiply
    31,389.62x = 47,072.38 × 13,366.43
  4. Step 4: Simplify right side
    31,389.62x = 629,189,403.43
  5. Step 5: Solve for x
    x = 629,189,403.43/31,389.62
  6. Step 6: Final answer
    x = 20,044.50

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1.5x scale

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.