Home / 18,516.36-27,903.35-16,761.90

Finding the Fourth Proportional to 18,516.36, 27,903.35 and 16,761.90

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Solution

The fourth proportional to 18,516.36, 27,903.35 and 16,761.90 is: 25,259.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.36 : 27,903.35 = 16,761.90 : x
  2. Step 2: Convert to fraction form
    18,516.36/27,903.35 = 16,761.90/x
  3. Step 3: Cross multiply
    18,516.36x = 27,903.35 × 16,761.90
  4. Step 4: Simplify right side
    18,516.36x = 467,713,162.37
  5. Step 5: Solve for x
    x = 467,713,162.37/18,516.36
  6. Step 6: Final answer
    x = 25,259.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.