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Finding the Fourth Proportional to 26,881.81, 40,322.81 and 8,162.01

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Solution

The fourth proportional to 26,881.81, 40,322.81 and 8,162.01 is: 12,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,881.81 : 40,322.81 = 8,162.01 : x
  2. Step 2: Convert to fraction form
    26,881.81/40,322.81 = 8,162.01/x
  3. Step 3: Cross multiply
    26,881.81x = 40,322.81 × 8,162.01
  4. Step 4: Simplify right side
    26,881.81x = 329,114,936.02
  5. Step 5: Solve for x
    x = 329,114,936.02/26,881.81
  6. Step 6: Final answer
    x = 12,243.03

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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.