Home / 18,139.80-25,035.84-16,953.96

Finding the Fourth Proportional to 18,139.80, 25,035.84 and 16,953.96

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Solution

The fourth proportional to 18,139.80, 25,035.84 and 16,953.96 is: 23,399.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.80 : 25,035.84 = 16,953.96 : x
  2. Step 2: Convert to fraction form
    18,139.80/25,035.84 = 16,953.96/x
  3. Step 3: Cross multiply
    18,139.80x = 25,035.84 × 16,953.96
  4. Step 4: Simplify right side
    18,139.80x = 424,456,629.93
  5. Step 5: Solve for x
    x = 424,456,629.93/18,139.80
  6. Step 6: Final answer
    x = 23,399.19

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1.5x scale

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.