Home / 30,125.88-45,209.66-10,404.60

Finding the Fourth Proportional to 30,125.88, 45,209.66 and 10,404.60

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Solution

The fourth proportional to 30,125.88, 45,209.66 and 10,404.60 is: 15,614.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.88 : 45,209.66 = 10,404.60 : x
  2. Step 2: Convert to fraction form
    30,125.88/45,209.66 = 10,404.60/x
  3. Step 3: Cross multiply
    30,125.88x = 45,209.66 × 10,404.60
  4. Step 4: Simplify right side
    30,125.88x = 470,388,428.44
  5. Step 5: Solve for x
    x = 470,388,428.44/30,125.88
  6. Step 6: Final answer
    x = 15,614.10

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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.