Home / 31,362.22-47,043.06-7,988.32

Finding the Fourth Proportional to 31,362.22, 47,043.06 and 7,988.32

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Solution

The fourth proportional to 31,362.22, 47,043.06 and 7,988.32 is: 11,982.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,362.22 : 47,043.06 = 7,988.32 : x
  2. Step 2: Convert to fraction form
    31,362.22/47,043.06 = 7,988.32/x
  3. Step 3: Cross multiply
    31,362.22x = 47,043.06 × 7,988.32
  4. Step 4: Simplify right side
    31,362.22x = 375,795,017.06
  5. Step 5: Solve for x
    x = 375,795,017.06/31,362.22
  6. Step 6: Final answer
    x = 11,982.41

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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.