Home / 30,125.66-45,209.21-10,404.25

Finding the Fourth Proportional to 30,125.66, 45,209.21 and 10,404.25

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Solution

The fourth proportional to 30,125.66, 45,209.21 and 10,404.25 is: 15,613.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,125.66 : 45,209.21 = 10,404.25 : x
  2. Step 2: Convert to fraction form
    30,125.66/45,209.21 = 10,404.25/x
  3. Step 3: Cross multiply
    30,125.66x = 45,209.21 × 10,404.25
  4. Step 4: Simplify right side
    30,125.66x = 470,367,758.10
  5. Step 5: Solve for x
    x = 470,367,758.10/30,125.66
  6. Step 6: Final answer
    x = 15,613.53

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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.