Home / 26,451.42-39,665.40-12,400.10

Finding the Fourth Proportional to 26,451.42, 39,665.40 and 12,400.10

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Solution

The fourth proportional to 26,451.42, 39,665.40 and 12,400.10 is: 18,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,451.42 : 39,665.40 = 12,400.10 : x
  2. Step 2: Convert to fraction form
    26,451.42/39,665.40 = 12,400.10/x
  3. Step 3: Cross multiply
    26,451.42x = 39,665.40 × 12,400.10
  4. Step 4: Simplify right side
    26,451.42x = 491,854,926.54
  5. Step 5: Solve for x
    x = 491,854,926.54/26,451.42
  6. Step 6: Final answer
    x = 18,594.65

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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.