Home / 31,981.93-47,945.53-12,274.63

Finding the Fourth Proportional to 31,981.93, 47,945.53 and 12,274.63

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Solution

The fourth proportional to 31,981.93, 47,945.53 and 12,274.63 is: 18,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.93 : 47,945.53 = 12,274.63 : x
  2. Step 2: Convert to fraction form
    31,981.93/47,945.53 = 12,274.63/x
  3. Step 3: Cross multiply
    31,981.93x = 47,945.53 × 12,274.63
  4. Step 4: Simplify right side
    31,981.93x = 588,513,640.90
  5. Step 5: Solve for x
    x = 588,513,640.90/31,981.93
  6. Step 6: Final answer
    x = 18,401.44

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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.