Home / 30,524.36-45,815.70-18,860.36

Finding the Fourth Proportional to 30,524.36, 45,815.70 and 18,860.36

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Solution

The fourth proportional to 30,524.36, 45,815.70 and 18,860.36 is: 28,308.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,524.36 : 45,815.70 = 18,860.36 : x
  2. Step 2: Convert to fraction form
    30,524.36/45,815.70 = 18,860.36/x
  3. Step 3: Cross multiply
    30,524.36x = 45,815.70 × 18,860.36
  4. Step 4: Simplify right side
    30,524.36x = 864,100,595.65
  5. Step 5: Solve for x
    x = 864,100,595.65/30,524.36
  6. Step 6: Final answer
    x = 28,308.56

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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.