Home / 31,418.64-47,127.30-9,231.48

Finding the Fourth Proportional to 31,418.64, 47,127.30 and 9,231.48

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Solution

The fourth proportional to 31,418.64, 47,127.30 and 9,231.48 is: 13,847.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,418.64 : 47,127.30 = 9,231.48 : x
  2. Step 2: Convert to fraction form
    31,418.64/47,127.30 = 9,231.48/x
  3. Step 3: Cross multiply
    31,418.64x = 47,127.30 × 9,231.48
  4. Step 4: Simplify right side
    31,418.64x = 435,054,727.40
  5. Step 5: Solve for x
    x = 435,054,727.40/31,418.64
  6. Step 6: Final answer
    x = 13,847.03

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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.