Home / 39,754.24-54,861-21,851.08

Finding the Fourth Proportional to 39,754.24, 54,861 and 21,851.08

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Solution

The fourth proportional to 39,754.24, 54,861 and 21,851.08 is: 30,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,754.24 : 54,861 = 21,851.08 : x
  2. Step 2: Convert to fraction form
    39,754.24/54,861 = 21,851.08/x
  3. Step 3: Cross multiply
    39,754.24x = 54,861 × 21,851.08
  4. Step 4: Simplify right side
    39,754.24x = 1,198,772,099.88
  5. Step 5: Solve for x
    x = 1,198,772,099.88/39,754.24
  6. Step 6: Final answer
    x = 30,154.57

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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.