Home / 31,584.39-47,381.44-10,517.20

Finding the Fourth Proportional to 31,584.39, 47,381.44 and 10,517.20

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Solution

The fourth proportional to 31,584.39, 47,381.44 and 10,517.20 is: 15,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,584.39 : 47,381.44 = 10,517.20 : x
  2. Step 2: Convert to fraction form
    31,584.39/47,381.44 = 10,517.20/x
  3. Step 3: Cross multiply
    31,584.39x = 47,381.44 × 10,517.20
  4. Step 4: Simplify right side
    31,584.39x = 498,320,080.77
  5. Step 5: Solve for x
    x = 498,320,080.77/31,584.39
  6. Step 6: Final answer
    x = 15,777.42

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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.