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Finding the Fourth Proportional to 35,102.56, 48,441.63 and 20,955.10

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Solution

The fourth proportional to 35,102.56, 48,441.63 and 20,955.10 is: 28,918.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,102.56 : 48,441.63 = 20,955.10 : x
  2. Step 2: Convert to fraction form
    35,102.56/48,441.63 = 20,955.10/x
  3. Step 3: Cross multiply
    35,102.56x = 48,441.63 × 20,955.10
  4. Step 4: Simplify right side
    35,102.56x = 1,015,099,200.81
  5. Step 5: Solve for x
    x = 1,015,099,200.81/35,102.56
  6. Step 6: Final answer
    x = 28,918.10

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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.