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Finding the Fourth Proportional to 35,392.64, 48,842.01 and 20,286.20

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Solution

The fourth proportional to 35,392.64, 48,842.01 and 20,286.20 is: 27,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,392.64 : 48,842.01 = 20,286.20 : x
  2. Step 2: Convert to fraction form
    35,392.64/48,842.01 = 20,286.20/x
  3. Step 3: Cross multiply
    35,392.64x = 48,842.01 × 20,286.20
  4. Step 4: Simplify right side
    35,392.64x = 990,818,539.05
  5. Step 5: Solve for x
    x = 990,818,539.05/35,392.64
  6. Step 6: Final answer
    x = 27,995.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.