Home / 36,240.30-54,365.85-12,864.78

Finding the Fourth Proportional to 36,240.30, 54,365.85 and 12,864.78

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Solution

The fourth proportional to 36,240.30, 54,365.85 and 12,864.78 is: 19,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,240.30 : 54,365.85 = 12,864.78 : x
  2. Step 2: Convert to fraction form
    36,240.30/54,365.85 = 12,864.78/x
  3. Step 3: Cross multiply
    36,240.30x = 54,365.85 × 12,864.78
  4. Step 4: Simplify right side
    36,240.30x = 699,404,699.76
  5. Step 5: Solve for x
    x = 699,404,699.76/36,240.30
  6. Step 6: Final answer
    x = 19,299.09

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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.