Home / 30,939.14-46,402.78-8,747.16

Finding the Fourth Proportional to 30,939.14, 46,402.78 and 8,747.16

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Solution

The fourth proportional to 30,939.14, 46,402.78 and 8,747.16 is: 13,119.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.14 : 46,402.78 = 8,747.16 : x
  2. Step 2: Convert to fraction form
    30,939.14/46,402.78 = 8,747.16/x
  3. Step 3: Cross multiply
    30,939.14x = 46,402.78 × 8,747.16
  4. Step 4: Simplify right side
    30,939.14x = 405,892,541.10
  5. Step 5: Solve for x
    x = 405,892,541.10/30,939.14
  6. Step 6: Final answer
    x = 13,119.06

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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.