Home / 30,269.72-45,404.09-13,617.98

Finding the Fourth Proportional to 30,269.72, 45,404.09 and 13,617.98

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Solution

The fourth proportional to 30,269.72, 45,404.09 and 13,617.98 is: 20,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,269.72 : 45,404.09 = 13,617.98 : x
  2. Step 2: Convert to fraction form
    30,269.72/45,404.09 = 13,617.98/x
  3. Step 3: Cross multiply
    30,269.72x = 45,404.09 × 13,617.98
  4. Step 4: Simplify right side
    30,269.72x = 618,311,694.43
  5. Step 5: Solve for x
    x = 618,311,694.43/30,269.72
  6. Step 6: Final answer
    x = 20,426.74

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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.