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Finding the Fourth Proportional to 35,008, 48,310.56 and 20,861.44

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Solution

The fourth proportional to 35,008, 48,310.56 and 20,861.44 is: 28,788.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,008 : 48,310.56 = 20,861.44 : x
  2. Step 2: Convert to fraction form
    35,008/48,310.56 = 20,861.44/x
  3. Step 3: Cross multiply
    35,008x = 48,310.56 × 20,861.44
  4. Step 4: Simplify right side
    35,008x = 1,007,827,848.81
  5. Step 5: Solve for x
    x = 1,007,827,848.81/35,008
  6. Step 6: Final answer
    x = 28,788.50

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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.