Home / 31,973.21-47,959.91-9,786.50

Finding the Fourth Proportional to 31,973.21, 47,959.91 and 9,786.50

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Solution

The fourth proportional to 31,973.21, 47,959.91 and 9,786.50 is: 14,679.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,973.21 : 47,959.91 = 9,786.50 : x
  2. Step 2: Convert to fraction form
    31,973.21/47,959.91 = 9,786.50/x
  3. Step 3: Cross multiply
    31,973.21x = 47,959.91 × 9,786.50
  4. Step 4: Simplify right side
    31,973.21x = 469,359,659.22
  5. Step 5: Solve for x
    x = 469,359,659.22/31,973.21
  6. Step 6: Final answer
    x = 14,679.78

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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.