Home / 31,324.08-46,986.08-7,631.60

Finding the Fourth Proportional to 31,324.08, 46,986.08 and 7,631.60

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Solution

The fourth proportional to 31,324.08, 46,986.08 and 7,631.60 is: 11,447.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,324.08 : 46,986.08 = 7,631.60 : x
  2. Step 2: Convert to fraction form
    31,324.08/46,986.08 = 7,631.60/x
  3. Step 3: Cross multiply
    31,324.08x = 46,986.08 × 7,631.60
  4. Step 4: Simplify right side
    31,324.08x = 358,578,695.04
  5. Step 5: Solve for x
    x = 358,578,695.04/31,324.08
  6. Step 6: Final answer
    x = 11,447.38

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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.