Home / 30,324.08-45,478.82-12,784.34

Finding the Fourth Proportional to 30,324.08, 45,478.82 and 12,784.34

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Solution

The fourth proportional to 30,324.08, 45,478.82 and 12,784.34 is: 19,173.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,324.08 : 45,478.82 = 12,784.34 : x
  2. Step 2: Convert to fraction form
    30,324.08/45,478.82 = 12,784.34/x
  3. Step 3: Cross multiply
    30,324.08x = 45,478.82 × 12,784.34
  4. Step 4: Simplify right side
    30,324.08x = 581,416,697.68
  5. Step 5: Solve for x
    x = 581,416,697.68/30,324.08
  6. Step 6: Final answer
    x = 19,173.43

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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.