Home / 16,891.68-25,355.34-13,807.20

Finding the Fourth Proportional to 16,891.68, 25,355.34 and 13,807.20

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Solution

The fourth proportional to 16,891.68, 25,355.34 and 13,807.20 is: 20,725.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891.68 : 25,355.34 = 13,807.20 : x
  2. Step 2: Convert to fraction form
    16,891.68/25,355.34 = 13,807.20/x
  3. Step 3: Cross multiply
    16,891.68x = 25,355.34 × 13,807.20
  4. Step 4: Simplify right side
    16,891.68x = 350,086,250.45
  5. Step 5: Solve for x
    x = 350,086,250.45/16,891.68
  6. Step 6: Final answer
    x = 20,725.37

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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.