Home / 71,444.06-107,157.84-18,857.64

Finding the Fourth Proportional to 71,444.06, 107,157.84 and 18,857.64

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Solution

The fourth proportional to 71,444.06, 107,157.84 and 18,857.64 is: 28,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,444.06 : 107,157.84 = 18,857.64 : x
  2. Step 2: Convert to fraction form
    71,444.06/107,157.84 = 18,857.64/x
  3. Step 3: Cross multiply
    71,444.06x = 107,157.84 × 18,857.64
  4. Step 4: Simplify right side
    71,444.06x = 2,020,743,969.90
  5. Step 5: Solve for x
    x = 2,020,743,969.90/71,444.06
  6. Step 6: Final answer
    x = 28,284.28

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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.