Home / 30,544.72-45,739.32-20,124.88

Finding the Fourth Proportional to 30,544.72, 45,739.32 and 20,124.88

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Solution

The fourth proportional to 30,544.72, 45,739.32 and 20,124.88 is: 30,136.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,544.72 : 45,739.32 = 20,124.88 : x
  2. Step 2: Convert to fraction form
    30,544.72/45,739.32 = 20,124.88/x
  3. Step 3: Cross multiply
    30,544.72x = 45,739.32 × 20,124.88
  4. Step 4: Simplify right side
    30,544.72x = 920,498,326.28
  5. Step 5: Solve for x
    x = 920,498,326.28/30,544.72
  6. Step 6: Final answer
    x = 30,136.09

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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.