Home / 31,309.65-46,958.66-9,117.75

Finding the Fourth Proportional to 31,309.65, 46,958.66 and 9,117.75

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Solution

The fourth proportional to 31,309.65, 46,958.66 and 9,117.75 is: 13,674.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,309.65 : 46,958.66 = 9,117.75 : x
  2. Step 2: Convert to fraction form
    31,309.65/46,958.66 = 9,117.75/x
  3. Step 3: Cross multiply
    31,309.65x = 46,958.66 × 9,117.75
  4. Step 4: Simplify right side
    31,309.65x = 428,157,486.91
  5. Step 5: Solve for x
    x = 428,157,486.91/31,309.65
  6. Step 6: Final answer
    x = 13,674.94

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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.