Home / 26,655.97-39,900.12-18,287.05

Finding the Fourth Proportional to 26,655.97, 39,900.12 and 18,287.05

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Solution

The fourth proportional to 26,655.97, 39,900.12 and 18,287.05 is: 27,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,655.97 : 39,900.12 = 18,287.05 : x
  2. Step 2: Convert to fraction form
    26,655.97/39,900.12 = 18,287.05/x
  3. Step 3: Cross multiply
    26,655.97x = 39,900.12 × 18,287.05
  4. Step 4: Simplify right side
    26,655.97x = 729,655,489.45
  5. Step 5: Solve for x
    x = 729,655,489.45/26,655.97
  6. Step 6: Final answer
    x = 27,373.06

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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.