Home / 26,480.68-39,700.12-18,135.40

Finding the Fourth Proportional to 26,480.68, 39,700.12 and 18,135.40

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Solution

The fourth proportional to 26,480.68, 39,700.12 and 18,135.40 is: 27,188.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,480.68 : 39,700.12 = 18,135.40 : x
  2. Step 2: Convert to fraction form
    26,480.68/39,700.12 = 18,135.40/x
  3. Step 3: Cross multiply
    26,480.68x = 39,700.12 × 18,135.40
  4. Step 4: Simplify right side
    26,480.68x = 719,977,556.25
  5. Step 5: Solve for x
    x = 719,977,556.25/26,480.68
  6. Step 6: Final answer
    x = 27,188.79

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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.