Home / 16,921.68-25,384.99-5,235.81

Finding the Fourth Proportional to 16,921.68, 25,384.99 and 5,235.81

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Solution

The fourth proportional to 16,921.68, 25,384.99 and 5,235.81 is: 7,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.68 : 25,384.99 = 5,235.81 : x
  2. Step 2: Convert to fraction form
    16,921.68/25,384.99 = 5,235.81/x
  3. Step 3: Cross multiply
    16,921.68x = 25,384.99 × 5,235.81
  4. Step 4: Simplify right side
    16,921.68x = 132,910,984.49
  5. Step 5: Solve for x
    x = 132,910,984.49/16,921.68
  6. Step 6: Final answer
    x = 7,854.48

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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.