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Finding the Fourth Proportional to 35,682.60, 53,523.90 and 20,908.20

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Solution

The fourth proportional to 35,682.60, 53,523.90 and 20,908.20 is: 31,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,682.60 : 53,523.90 = 20,908.20 : x
  2. Step 2: Convert to fraction form
    35,682.60/53,523.90 = 20,908.20/x
  3. Step 3: Cross multiply
    35,682.60x = 53,523.90 × 20,908.20
  4. Step 4: Simplify right side
    35,682.60x = 1,119,088,405.98
  5. Step 5: Solve for x
    x = 1,119,088,405.98/35,682.60
  6. Step 6: Final answer
    x = 31,362.30

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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.