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Finding the Fourth Proportional to 30,939.44, 46,411.68 and 8,753

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Solution

The fourth proportional to 30,939.44, 46,411.68 and 8,753 is: 13,130.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.44 : 46,411.68 = 8,753 : x
  2. Step 2: Convert to fraction form
    30,939.44/46,411.68 = 8,753/x
  3. Step 3: Cross multiply
    30,939.44x = 46,411.68 × 8,753
  4. Step 4: Simplify right side
    30,939.44x = 406,241,435.04
  5. Step 5: Solve for x
    x = 406,241,435.04/30,939.44
  6. Step 6: Final answer
    x = 13,130.21

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1.5x scale

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.