Home / 18,735.13-27,903.89-18,644.61

Finding the Fourth Proportional to 18,735.13, 27,903.89 and 18,644.61

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Solution

The fourth proportional to 18,735.13, 27,903.89 and 18,644.61 is: 27,769.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.13 : 27,903.89 = 18,644.61 : x
  2. Step 2: Convert to fraction form
    18,735.13/27,903.89 = 18,644.61/x
  3. Step 3: Cross multiply
    18,735.13x = 27,903.89 × 18,644.61
  4. Step 4: Simplify right side
    18,735.13x = 520,257,297.78
  5. Step 5: Solve for x
    x = 520,257,297.78/18,735.13
  6. Step 6: Final answer
    x = 27,769.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.