Home / 36,278.55-54,404.87-12,900.33

Finding the Fourth Proportional to 36,278.55, 54,404.87 and 12,900.33

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Solution

The fourth proportional to 36,278.55, 54,404.87 and 12,900.33 is: 19,345.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,278.55 : 54,404.87 = 12,900.33 : x
  2. Step 2: Convert to fraction form
    36,278.55/54,404.87 = 12,900.33/x
  3. Step 3: Cross multiply
    36,278.55x = 54,404.87 × 12,900.33
  4. Step 4: Simplify right side
    36,278.55x = 701,840,712.11
  5. Step 5: Solve for x
    x = 701,840,712.11/36,278.55
  6. Step 6: Final answer
    x = 19,345.89

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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.