Home / 30,249.90-45,384.09-15,469.20

Finding the Fourth Proportional to 30,249.90, 45,384.09 and 15,469.20

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Solution

The fourth proportional to 30,249.90, 45,384.09 and 15,469.20 is: 23,208.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,249.90 : 45,384.09 = 15,469.20 : x
  2. Step 2: Convert to fraction form
    30,249.90/45,384.09 = 15,469.20/x
  3. Step 3: Cross multiply
    30,249.90x = 45,384.09 × 15,469.20
  4. Step 4: Simplify right side
    30,249.90x = 702,055,565.03
  5. Step 5: Solve for x
    x = 702,055,565.03/30,249.90
  6. Step 6: Final answer
    x = 23,208.53

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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.