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Finding the Fourth Proportional to 43,477.49, 65,210.79 and 13,892.87

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Solution

The fourth proportional to 43,477.49, 65,210.79 and 13,892.87 is: 20,837.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,477.49 : 65,210.79 = 13,892.87 : x
  2. Step 2: Convert to fraction form
    43,477.49/65,210.79 = 13,892.87/x
  3. Step 3: Cross multiply
    43,477.49x = 65,210.79 × 13,892.87
  4. Step 4: Simplify right side
    43,477.49x = 905,965,028.07
  5. Step 5: Solve for x
    x = 905,965,028.07/43,477.49
  6. Step 6: Final answer
    x = 20,837.57

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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.