Home / 30,178.20-45,249.12-13,535.22

Finding the Fourth Proportional to 30,178.20, 45,249.12 and 13,535.22

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Solution

The fourth proportional to 30,178.20, 45,249.12 and 13,535.22 is: 20,294.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,178.20 : 45,249.12 = 13,535.22 : x
  2. Step 2: Convert to fraction form
    30,178.20/45,249.12 = 13,535.22/x
  3. Step 3: Cross multiply
    30,178.20x = 45,249.12 × 13,535.22
  4. Step 4: Simplify right side
    30,178.20x = 612,456,794.01
  5. Step 5: Solve for x
    x = 612,456,794.01/30,178.20
  6. Step 6: Final answer
    x = 20,294.68

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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.