Home / 36,139.30-54,218.40-13,953.40

Finding the Fourth Proportional to 36,139.30, 54,218.40 and 13,953.40

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Solution

The fourth proportional to 36,139.30, 54,218.40 and 13,953.40 is: 20,933.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,139.30 : 54,218.40 = 13,953.40 : x
  2. Step 2: Convert to fraction form
    36,139.30/54,218.40 = 13,953.40/x
  3. Step 3: Cross multiply
    36,139.30x = 54,218.40 × 13,953.40
  4. Step 4: Simplify right side
    36,139.30x = 756,531,022.56
  5. Step 5: Solve for x
    x = 756,531,022.56/36,139.30
  6. Step 6: Final answer
    x = 20,933.75

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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.