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Finding the Fourth Proportional to 30,891.50, 45,939.84 and 29,907.35

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Solution

The fourth proportional to 30,891.50, 45,939.84 and 29,907.35 is: 44,476.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.50 : 45,939.84 = 29,907.35 : x
  2. Step 2: Convert to fraction form
    30,891.50/45,939.84 = 29,907.35/x
  3. Step 3: Cross multiply
    30,891.50x = 45,939.84 × 29,907.35
  4. Step 4: Simplify right side
    30,891.50x = 1,373,938,644.12
  5. Step 5: Solve for x
    x = 1,373,938,644.12/30,891.50
  6. Step 6: Final answer
    x = 44,476.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.