Home / 31,981.14-47,885.61-20,860.26

Finding the Fourth Proportional to 31,981.14, 47,885.61 and 20,860.26

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Solution

The fourth proportional to 31,981.14, 47,885.61 and 20,860.26 is: 31,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.14 : 47,885.61 = 20,860.26 : x
  2. Step 2: Convert to fraction form
    31,981.14/47,885.61 = 20,860.26/x
  3. Step 3: Cross multiply
    31,981.14x = 47,885.61 × 20,860.26
  4. Step 4: Simplify right side
    31,981.14x = 998,906,274.86
  5. Step 5: Solve for x
    x = 998,906,274.86/31,981.14
  6. Step 6: Final answer
    x = 31,234.23

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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.