Home / 31,309.79-46,964.88-7,936.23

Finding the Fourth Proportional to 31,309.79, 46,964.88 and 7,936.23

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Solution

The fourth proportional to 31,309.79, 46,964.88 and 7,936.23 is: 11,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.79 : 46,964.88 = 7,936.23 : x
  2. Step 2: Convert to fraction form
    31,309.79/46,964.88 = 7,936.23/x
  3. Step 3: Cross multiply
    31,309.79x = 46,964.88 × 7,936.23
  4. Step 4: Simplify right side
    31,309.79x = 372,724,089.60
  5. Step 5: Solve for x
    x = 372,724,089.60/31,309.79
  6. Step 6: Final answer
    x = 11,904.40

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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.