Home / 31,487.92-47,199.48-13,966

Finding the Fourth Proportional to 31,487.92, 47,199.48 and 13,966

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Solution

The fourth proportional to 31,487.92, 47,199.48 and 13,966 is: 20,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.92 : 47,199.48 = 13,966 : x
  2. Step 2: Convert to fraction form
    31,487.92/47,199.48 = 13,966/x
  3. Step 3: Cross multiply
    31,487.92x = 47,199.48 × 13,966
  4. Step 4: Simplify right side
    31,487.92x = 659,187,937.68
  5. Step 5: Solve for x
    x = 659,187,937.68/31,487.92
  6. Step 6: Final answer
    x = 20,934.63

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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.