Home / 43,428.53-65,122.75-18,455.27

Finding the Fourth Proportional to 43,428.53, 65,122.75 and 18,455.27

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Solution

The fourth proportional to 43,428.53, 65,122.75 and 18,455.27 is: 27,674.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,428.53 : 65,122.75 = 18,455.27 : x
  2. Step 2: Convert to fraction form
    43,428.53/65,122.75 = 18,455.27/x
  3. Step 3: Cross multiply
    43,428.53x = 65,122.75 × 18,455.27
  4. Step 4: Simplify right side
    43,428.53x = 1,201,857,934.39
  5. Step 5: Solve for x
    x = 1,201,857,934.39/43,428.53
  6. Step 6: Final answer
    x = 27,674.39

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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.